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- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
For Your Every Summer RSVP, with Code: SUMMER15
Description
HFS Turnkey Cold Trap Dewar Condenser Kit, 35/20 Ball JointSKU: KIT COLDTRAP 1L B3520 Vacuum inlet outlet: 3 8" barb Capacity: 1L Joint Size: 24 40 Tapered Specifications: Vacuum inlet outlet: 3 8" barb Capacity: 1L Joint Size: 35 20 Ball Joint Components Cold Trap: 1L Cold Trap Dewar Condenser, 35 20 Ball Joint Receiving Flask: 1L One Neck Round Bottom Flasks C 35 20 Center Joint Lid: PTFE Cold Trap Lid, 1L Stand Rod: Lab Stand and Rod Set, 11. 8x7x26" (LxWxH) Clamp: HFS Lab Chain Clamp, 150mm Capacity Clamp
SKU:KIT-COLDTRAP-1L-B3520Vacuum inlet/outlet: 3/8" barb
Capacity: 1L
Joint Size: 24/40 Tapered Specifications:
Vacuum inlet/outlet: 3/8" barb
Capacity: 1L
Joint Size: 35/20 Ball Joint
Capacity: 1L
Joint Size: 24/40 Tapered Specifications:
Vacuum inlet/outlet: 3/8" barb
Capacity: 1L
Joint Size: 35/20 Ball Joint
Components
Cold Trap: 1L Cold Trap Dewar Condenser, 35/20 Ball Joint
Receiving Flask: 1L One Neck Round Bottom Flasks ¡§C 35/20 Center Joint
Lid: PTFE Cold Trap Lid, 1L
Stand/Rod: Lab Stand and Rod Set, 11.8x7x26" (LxWxH)
Clamp: HFS Lab Chain Clamp, 150mm Capacity
Clamp Support: Boss Head Clamp, German Style
Ring Support: Support Ring with Boss Head Clamp, 100mm
Seal Clamp: Ball Joint Pinch Clamp #35
Cork Stand: 110mm
Lab Jack: Stainless Steel, 4x4x6?¡À
Connector Fittings: (2) GL-18 with 3/8?¡À Straight Hose Barb Adapter
SKU:KIT-COLDTRAP-2L-B3520Cold Trap: 1L Cold Trap Dewar Condenser, 35/20 Ball Joint
Receiving Flask: 1L One Neck Round Bottom Flasks ¡§C 35/20 Center Joint
Lid: PTFE Cold Trap Lid, 1L
Stand/Rod: Lab Stand and Rod Set, 11.8x7x26" (LxWxH)
Clamp: HFS Lab Chain Clamp, 150mm Capacity
Clamp Support: Boss Head Clamp, German Style
Ring Support: Support Ring with Boss Head Clamp, 100mm
Seal Clamp: Ball Joint Pinch Clamp #35
Cork Stand: 110mm
Lab Jack: Stainless Steel, 4x4x6?¡À
Connector Fittings: (2) GL-18 with 3/8?¡À Straight Hose Barb Adapter
Vacuum inlet/outlet: 3/8" barb
Capacity: 2L
Joint Size: 35/20 Ball Joint
Components
Cold Trap: 2L Cold Trap Dewar Condenser, 35/20 Ball Joint
Receiving Flask: 2L One Neck Round Bottom Flasks ¡§C 35/20 Center Joint
Lid: PTFE Cold Trap Lid, 2L
Stand/Rod: Lab Stand and Rod Set, 11.8x7x26" (LxWxH)
Clamp: HFS Lab Chain Clamp, 150mm Capacity
Clamp Support: Boss Head Clamp, German Style
Ring Support: Support Ring with Boss Head Clamp, 120mm
Seal Clamp: Plastic Keck Clip #24
Cork Stand: 120mm
Lab Jack: Stainless Steel, 6x6x10?¡À
Connector Fittings: (2) GL-18 with 3/8?¡À Straight Hose Barb Adapter
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 152 reviews
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Product Reviews
★★★★★ 3
Seem to help heal, but doesn't reach the balls of my feet
Size: 3 Pairs - Gray, Green, Pink
Only can wear when I am sitting down because they're to slippery to walk in
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
★★★★★ 5
love these for soft feet!!
Size: 3 Pairs - Gray, Green, Pink
these are great. My feet are soft already! What I like best is my feet. Don't get hot in them because the heels and toes are exposed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
★★★★★ 5
Heel saver
Size: 3 Pairs - Gray, Green, Pink
These little things are great, super comfy and I saw the difference in my feet after one use
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
★★★★★ 5
Bouncy, not hard, and good value.
Style: Fetch Balls (Pack of 10), Size: 2.5 inch
Great balls for the ball launcher and not rockhard like some of the solid rubber balls. These have great bounce, and because of the two holes, they make a fun whistling noise as they fly through the air. My dogs love them and they are a good value.
By the way, if you throw them too hard, they will go through chain-link and no climb fence because they squish a bit!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 5
Excellent dog balls — safe design and very durable
Style: Fetch Balls (Pack of 3), Size: 2.5 inch
These fetch balls from Amazon Basics are fantastic, and my dog absolutely loves them. One of the biggest reasons I prefer these over other brands is the hole that runs through the center of the ball. This is a very important safety feature: if a dog were to accidentally get the ball stuck in the back of the throat, the hole allows air to pass through. That small detail could literally make a life-saving difference.
Aside from the safety benefit, they bounce well, are easy to clean, and hold up to a lot of playtime. They’re firm but not rock-hard, and my dog goes crazy for them. Great value, great quality, and a thoughtful design.
Highly recommended for dog owners who want a safer alternative to standard solid rubber balls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
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