SKU: 29516065242

Evolution Aqua Pond Filter Nexus 220 Ponds up to 18000L

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Description

Evolution Aqua Pond Filter Nexus 220 Ponds up to 18000LEvolution Aqua Pond Filter Nexus 220 Ponds up to 18000L The Nexus 320 and Nexus 220 filtration systems deliver dramatically improved levels of clarity for ponds. Building on the success of the award winning Nexus range this new generation of filters cleverly combine mechanical and biological filtration into one advanced filter system, whilst being incredibly easy to clean and simple to install. The Nexus 220 and 320 feature a re designed Eazy filter

Evolution Aqua Pond Filter Nexus 220 Ponds up to 18000L

The Nexus 320 and Nexus 220 filtration systems deliver dramatically improved levels of clarity for ponds. Building on the success of the award winning Nexus range this new generation of filters cleverly combine mechanical and biological filtration into one advanced filter system, whilst being incredibly easy to clean and simple to install.

The Nexus 220 and 320 feature a re-designed Eazy filter which now utilises the all new K1 Micro® Filter Media, in a static bed, to deliver improved levels of mechanical filtration. The Nexus filter systems also use the acclaimed K1 Media in the moving bed to deliver outstanding levels of biological filtration. Together this combination of filter media work to deliver crystal clear and healthy water.

All Nexus filtration systems can be installed on pump fed or gravity fed setups depending on your pond configuration. The Nexus 220 is suitable for ponds up to 18,000 litres (4,000 gallons) while for larger ponds the Nexus 320 can be installed on ponds up to 34,000 litres (7,500 gallons).

How the Nexus works
Water from the pond enters the nexus via the inlet into the inner chamber which works as a vortex allowing larger solids to settle out.
Water then passes through the grills in the stainless steel “Eazy” filter, where the finer particles are removed at the mechanical stage of filtration, thanks to the static bed of our award winning K1 Micro filter media.
The mechanically clean water then passes to the outside chamber of the nexus where the K1 Media moving bed is located for biological treatment prior to being returned to the pond.
At this stage, biological breakdown occurs through different strains of bacteria and filter feeders living on the protected surface area of each piece of the K1 Media. These bacteria convert Ammonia and Nitrite into less harmful Nitrate.
Water then passes through the exit grill into the outlet, returning back to the pond.

Eazy Filter
The Eazy is a stainless steel vessel containing a set volume of K1 Micro Media (20 litres in the Nexus 320 and 18 litres in the Nexus 220) which is located within the inner chamber of the Nexus. After water enters the Nexus it rotates around the Eazy in the inner chamber with a downward motion allowing the larger solids to settle to the bottom of the chamber before passing through the slots of the Eazy into the static K1 Micro. The water flows from all angles through the K1 Micro where improved mechanical filtration and settlement takes place and fine particles are caught within the K1 Micro. The water then flows through the slots in the centre column and into the outer chamber.

Biological filtration
The outer chamber of the Nexus contains the moving bed of K1 Media. 100 litres of K1 Media is supplied with the Nexus 320 with the option to add an extra 200 litres of K1 Media should it be needed. The Nexus 220 is supplied with 50 litres of K1 Media, with the option to add an extra 100 litres of K1 Media if needed. This allows your filter’s biological capability to grow with your fish.

The outer chamber is where the final stage of biological treatment occurs. Biological breakdown occurs through different strains of bacteria living on the protected surface area on each piece of the K1 Media. These bacteria convert Ammonia and Nitrite into harmless Nitrate. The amount of Ammonia and Nitrite produced in the pond is dependent on feed rates and the type of food used. For higher feed rates additional K1 Media should be added into the outer chamber.

Air pump requirements
You can increase the biological capacity of your Nexus by adding additional K1 Media into the outer chamber. You will however need to ensure that you have the correct size of air pump to enable the K1 Media to move sufficiently (see table for recommended size of air pump).

Improved mechanical filtration
The new design of the Eazy enables the Nexus to capture solids more effectively than before. K1 Micro is used inside the re-designed Eazy helping to deliver improved capture of fine particles, delivering unrivalled mechanical filtration.

Improved flow
The new Eazy features an improved pattern of slots in the stainless steel body which makes the filter more efficient. Water can pass through the Eazy through all sides and from below, much more effectively than before. This feature combined with the use of K1 Micro makes for improved flow rates through the entire mechanical filter stage.

Dramatically improved clarity
The Nexus 320 and 220 filter systems use two types of filter media to deliver optimum levels of clarity in your pond. K1 Micro is used in the Eazy to improve mechanical filtration while the tried and tested K1 Media is used in the moving bed outer chamber, delivering the biological filtration.

Easy to clean and maintain
A key feature of all Nexus filtration systems is the sheer ease of maintenance. This still remains the case with the new Nexus 220 and 320 systems. The Eazy is simply cleaned by using a combi- nation of the cleaning pipe, air valves and ball valves fitted to the Nexus, meaning you don’t need to get your hands dirty. The clear lid fitted to the Eazy also makes it easy to visual inspect the K1 Micro media.

Better solids handling
Inside the centre mechanical stage of the Nexus, there is a much larger area for solid waste to be captured and to settle. This area can then be cleaned even easier than before ensuring the filter does not clog up with unnecessary amounts of waste.

Removable Eazy
All Eazy filters used in the Nexus 320 / 220 series can be removed if needed with the K1 Micro in place. This added feature is ideal when undertaking further maintenance.

Flow rates
One of the factors that can have a significant influence on the general parameters of our ponds is turn over rate. This is the time that it takes for the total volume of the pond to pass through the filter system once. We recommend that for ideal performance a turn over rate of every 2 to 3 hours is found to be best.

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SKU: 29516065242

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4.3 ★★★★★
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Dave V.
Cuba, US
★★★★★ 5
The Final Volume of An Excellent Commentary Series Does Not Disappoint
Format: Hardcover
After 7 years, Crossway has completed their ESV Expository Commentary set. Ironically, Vol. 1, was the last of the twelve volumes to be completed. It fully lives up to the standard the other eleven set. Like the other volumes, it focuses on a passage by passage commentary of each book, followed by a ‘Response’ section that is usually some form of practical application of belief or behavior. For example, in my copy, the ribbon marker was already in Exodus 17:1-7’s ‘Response’ page, and it discussed the question of ‘Why Does God Test His People?’. Jay Sklar’s response includes this wisdom: ‘testing not only gives us an opportunity to show faithfulness; it also helps us to to become more faithful.’ (pg. 578). While I have not yet read the whole thing, Crossway seems to have balanced some well-known scholars with other lesser known ones. Genesis in this volume is covered by Iain Duguid, noted OT scholar currently teaching at Westminster Seminary. Exodus is examined by Covenant Seminary Professor of Old Testament, Jay Sklar, who is a well-known expert on all five books of the Pentateuch. I had not heard of Christine Palmer (Leviticus) or Ronald Bergey (Numbers) before, but Crossway has earned my trust, and I presume their contributions will live up to the standards of others in this series. The commentary is pretty beefy, and the hardcover binding (if my previous volumes are any indication) will need to be handled with care - especially if you are like me, and sometimes try to photocopy pages so you don’t have to carry the whole commentary to a coffee shop or library! All in all, if you are a pastor, Bible student, or lead a Bible study, this series, and this volume, will be a benefit to you.
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Reviewed in the United States on June 20, 2025
L
Lori A Alsdorf
Pawtucket, US
★★★★★ 5
Excellent, Readable Bible Commentary
Format: Hardcover, Format: Hardcover
I feel more than a little inadequate writing a review of this first volume of the Expository Commentary which uses the English Standard Version (ESV) of the Holy Bible. The ESV has become my favorite Bible translation due to its excellent readability and reliability, thus influencing my decision to order this commentary. Just as readability influences my choice of Bible translations, this commentary also does an excellent job of maintaining readability across all four authors, each one having authored one complete book- Genesis through Numbers. This is a scholarly work and as such it uses references to a large body of additional scholarly works, more than three full pages worth, and lists abbreviations for each with those abbreviations noted throughout the text of the commentary for each book in the volume. These references include ancient as well as more contemporary works, most have English titles and a number are works grounded in the original Hebrew. Another help for any expositor are the ongoing references to other Bible passages that relate to the text of the commentary. Each of these references, and there are thousands of them, are listed in a Scripture Index organized from Genesis to Revelation that require nearly sixty pages at the very back of the volume. Though I’ve not read all 1392 pages, I’ve found editing to be excellent, though I did find one error on page 34 that had no consequence for understanding the meaning. I know many prefer the ease of using digital resources for study due to quick access, portability, and easy storage (I found this resource is also available digitally). I can easily recommend this resource without reservation.
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Reviewed in the United States on July 5, 2025
J
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JustinHoca
Phoenix, US
★★★★★ 5
Helpful and informative
Format: Kindle
Four Views on the Book of Revelation (Counterpoints: Bible and Theology) edited by Stanley N. Gundry and C. Marvin Pate I read this book after previously reviewing Revelation in Context: John’s Apocalypse and Second Temple Judaism. That book was helpful for me to understand Revelation as apocalyptic literature, one example of the genre with similarities to others from the first and second centuries. Interpreting Revelation as apocalyptic literature is itself a choice, and some approaches to Revelation, such as classic dispensationalism with its emphasis on grammatical-historical hermeneutics are skeptical of that approach. As Thomas writes in his chapter “To understand any passage of Scripture in a nonliteral way violates principles of grammatical-historical interpretation unless contextual features signal a need to interpret otherwise” (p. 244). I found Revelation in Context helpful for introducing various apocalyptic books of the age in providing greater context for Jewish thought up to and after John wrote Revelation. The editors of Four Views provide a good overview of the four views presented as well as a good introduction to Revelation. The four authors and their positions are: Kenneth L. Gentry, Jr. (preterist) Sam Hamstra, Jr. (idealist) C. Marvin Pate (progressive dispensationalist) Robert L. Thomas (classical dispensationalist) Each author made a case for his position and responded briefly to points by the other authors. Thomas is the most insistent in his argument and spends the most time critiquing the others’ positions. The differences stem entirely from their hermeneutics, each has a different approach to the book and each calls “foul” with the others’ misuse or lack of consistency of their own hermeneutics. For me, the winner was the preterist position, as I’d never truly been exposed to this paradigm. The author allows it to speak for itself, and I found it appealing because of how well the events of 68-70 AD as described (mainly) by Josephus line up eerily well with the words of Revelation. In some cases, it seems Josephus is quoting Revelation, which made me wonder whether the authors had taken liberties with the actual translation of Josephus’ works. After reading Gentry Jr.’s view, reading Revelation with a preterist’s viewpoint in mind made it a completely different book for me. Whether the position is correct or not, it allowed me to read Revelation again for the first time, so to speak– that was a gift. Thomas drove home for me that classical dispensationalism demands a special place for the ethnic people of Israel including a rebuilding of the temple along with its sacrifices. Babylon on the Euphrates is literally the Babylon of old and must also be rebuilt, which he interprets to be a Persian/Iranian empire that will come to fruition again. I think I can see how this view is at long last falling out of favor. Some of the writers may be somewhat heterodox. Gentry, for example, leaves open some possibilities for partial preterism or has some reasoning other preterists don’t have. Thomas is appalled at progressive dispensationalism’s “now and not yet” mentality as violating rules of grammatical-historical interpretation. Pate leaves the door open to Revelation having an earlier authorship and more sections being fulfilled in the first century than Thomas allows. Hamstra is in a field of his own, the “idealist” position sees Revelation as purely symbolic and not specific to any time period– everyone undergoing persecution is experiencing the spirit of the Antichrist, etc. Since reading this book, I’ve been checking out podcasts on preterism while pondering how covenantalists I know seem to sound like progressive dispensationalists. I am glad this book was published and will check out similar works in this series. Five stars.
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Reviewed in the United States on May 6, 2026
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Andrew A. Carr
Louisville, US
★★★★★ 5
A Little Gem
Format: Paperback
This little book is a wonderful resource for teachers, pastors, and all who want to gain a better understanding of the book of Revelation. The introduction by Marvin Pate is a real gem. It gives a helpful (and sometimes humorous) overview of the various positions expounded in the remainder of the book, and it offers a valuable apology for the study of prophecy. He points out that neither fanaticism nor the neglect of biblical prophecy is a healthy option for the follower of Christ. The heart of this volume is the presentation of four common interpretations of the book of Revelation. Kenneth Gentry does a nice job of presenting the preterist position, which is normally linked to postmillennialism. This position found a resurgence in the late 1980’s and 90’s after being on the brink of extinction. Gentry gives a good deal of historical information from Josephus’s Jewish War to bolster his interpretation of Revelation, yet questions remain. Do the atrocities of which Josephus writes reach the global proportions mentioned in Revelation? In addition, do the many passages quoted in support of a glorious earthly kingdom really affirm a postmillennial kingdom? Finally, the preterist position articulated by Gentry necessitates a pre 70 AD date for the composition of Revelation. While this is not impossible, it is improbable, as most NT scholars hold to a post 70 date. The idealist view is ably defended by Sam Hamstra. The idealist view is often associated with amillennialism and has a long history stretching back to Augustine. It sees Revelation as a representation of the ongoing battle between good and evil. It denies a chronological and literal reading of revelation. The real value of this position is that it excels in bringing out the timeless theological truths which are embedded in Revelation. These truths can provide hope and encouragement for saints of any time or place. However, it does seem questionable whether Revelation was intended to be read in a nonchronological manner. The other difficulty is that it tends to strip Revelation of historical specificity. By saying that the prophecies of Revelation can apply to any age in general, one comes close to saying that they apply to no age in particular. The final view is that of premillennialism, which is represented by both a classical dispensationalist and a progressive dispensationalist. The two views have much in common as they both read Revelation more literally than the other two positions, and both see chronological progression in the book of Revelation. Robert Thomas defends the classical dispensationalist approach by stressing a literal hermeneutic and a chronological reading of Revelation. Marvin Pate represents progressive dispensationalism which synthesizes many of the positive features of the other three views while still maintaining a distinction between Israel and the church. One of the key elements of progressive dispensationalism is the emphasis on “pattern prophecy”. This understanding of prophecy allows for the repetition of prophetic events throughout history with escalating levels of fulfillment. Classical dispensationalist writers include John Walvoord, Dwight Pentecost, and Charles Ryrie. Progressive dispensationalism is represented by Darrell Bock and Craig Blaising. While dispensationalism is grounded in biblical soil, some would question whether it does justice to the highly symbolic and figurative language of biblical prophecy, and whether those prophecies should be seen as referring to actual future events that will occur in a chronological progression. This book is especially helpful when comparing eschatological systems and how they influence the interpretation of the book of Revelation. If one is looking to study the book of Revelation, this is a great place to start.
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Reviewed in the United States on November 3, 2013
J
Verified Purchase
J.W.
Lexington, US
★★★★★ 4
Great insight into each view, but disappointing format
Format: Paperback
The Zondervan Counterpoints series prides itself in giving known advocates of specific views a place to exposit their positions on various theological topics while also giving other positions an equal opportunity. This work continues to shine in that department. Each view was given enough space to give a general outline of the book of Revelation as well as a defense of their specifically preferred view. Each essay was very well done and gave a fair reading of the views that were included. However, it was very disappointing to see that unlike most other books in the series, this one did not have specific sections for each author to respond to the other views. There was some interaction via footnotes about the other essays, but the book would have been much better if each author had been given an opportunity to interact with the others. Reading the other reviews, I noticed lots of disappointment with the lack of including the historicist position. I share that disappointment, but would be hesitant to agree with the reviews that insisted there were only three views presented. The two dispensationalists included in the book had radically different approaches to hermeneutics. There were genuinely 4 views presented. Finally, I have noticed many of the reviews on here tend to give the book fewer stars based on their preferred view either not being there or because other views were perceived as so obviously wrong as to deserve attack. I give the book four stars because I think each presentation was an accurate, thought-provoking look at the view presented. It is disappointing that the historicist view was not included. It was also disappointing that the authors had little interaction other than the footnotes. But overall, if you want a book introducing major views on the book of Revelation, this is a good one to pick up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2013

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