4"x21" Hollow Fiber UF 0.9 Membrane Element (540 to 1,620 GPD)
SKU: 94280490924

4"x21" Hollow Fiber UF 0.9 Membrane Element (540 to 1,620 GPD)

Sale price$178.60 Regular price$198.44
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Description

4"x21" Hollow Fiber UF 0.9 Membrane Element (540 to 1,620 GPD)Hollow Fiber Ultrafiltration (UF) Membrane Elements AMI hollow fiber ultrafiltration (HF UF) membrane elements provide reliable rejection of microorganisms and viruses with low operating costs. AMI HF UF elements are offered in standard RO Membrane sizes for use in standard membrane housing pressure vessels. Our hollow fiber UF elements are ideal for use in small commercial, point of use, and point of entry applications. Installation: This element

Hollow Fiber Ultrafiltration (UF) Membrane Elements

AMI hollow fiber ultrafiltration (HF UF) membrane elements provide reliable rejection of microorganisms and viruses with low operating costs. AMI HF UF elements are offered in standard RO Membrane sizes for use in standard membrane housing pressure vessels.

Our hollow fiber UF elements are ideal for use in small commercial, point-of-use, and point-of entry applications.

Installation:

This element fits in a standard 4"x21" Size Membrane Housing with use of adapter AD-40HF (Qty. 2). Adapter is sold separately.

Specifications for M-U4021HF09
AMI Part Number: M-U4021HF09
Size: 4" Dia. x 21"L
Membrane Type: Hollow Fiber 0.9
Estimated Flow*: 540 to 1,620 GPD
Membrane Area: 27 ft2 (2.5 m2)
Housing & Tube Material: PVC-U, White
Max. Trans-Membrane Pressure: 43.5 psi (3 bar)
Temperature Range: 32-104°F (0-40°C)

*Individual UF modules can be configured in parallel to provide increased system capacities. The individual UF module flow ranges depend upon the source water quality and pretreatment. Consult with a water treatment professional for design flow rates for a specific application.

To avoid mechanical damage, do not subject the membrane to sudden temperature changes (>1°C/min) or water hammer

Advantages of AMI HF UF Membranes:

  • Ideal for Pre-Treatment to Reverse Osmosis
  • Can be used in Standard RO Housing with Filtrate Connector Kit (sold separately)
  • Reliable Rejection of Microorganisms and Viruses
  • Excellent Quality of Filtrate
  • Easy Installation and Handling

4x21 UF HF Membrane Dimensions:

  • Length (L): 18.7" (475 mm +/- 1.5)
  • Outer Diameter (D): 3.94" (100 mm)
  • Filtrate Connection (F): 1.12:" (28.4 mm)

For more information, please visit this products webpage.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 94280490924

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Lexington, US
★★★★★ 5
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My 8 month old Golden Retriever loves these. It is also one of the few products she cannot destroy. They smell as described and she loves to chew them and play fetch when. She can chew these easily without destroying them. Overall good value for the money for my Golden
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Reviewed in the United States on January 2, 2026
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Amazon Customer
New York, US
★★★★★ 5
My dogs are obsessed with this ball
Size: 2-pack, Style: Duo
Great quality! I have 2 boxers that love it and the ball is still intact
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Reviewed in the United States on January 31, 2026
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Dianna H
Chelsea, US
★★★★★ 5
Not Scented, but Dog Approved
Size: 2-pack, Style: Duo
They don't smell like peanut butter or bacon. But our dogs still love them.
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Reviewed in the United States on August 31, 2025
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waragon
Port Orchard, US
★★★★★ 4
If they squeaked, they would be the perfect ball!
Size: 2-pack, Style: Duo
I bought our 15 month old Coton several Chuck-It toys on an Amazon deal. He is incredibly playful, mischievous, and ball/toy obsessed, especially for anything that makes noise. He can also be very destructive so I love how durable most of their products are - they’re among our longest lasting toys and worth every penny. We have yet to take them to the dog park, but they’re a perfect size for sharing in plat time. And they are keeping him busy at home - that’s a good thing. The scent is subtle but strong enough for him I guess because he loves gnawing on them. If they had squeakers, they would be absolutely perfect. Hopefully Chuck-It will see an opportunity for that down the road!
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Reviewed in the United States on May 28, 2026
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Reepeat
Grantham, US
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Most durable fetch balls I know of.
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