Hydrocomponents & Technologies Inc.
4 x 21 inch Watermaker Housings 1000 PSI FRP Fiberglass Desalination Machine Membrane Pressure Vessels ( PV-4021SW )
4 x 21 inch Watermaker Housings 1000 PSI FRP Fiberglass Desalination Machine Membrane Pressure Vessels ( PV-4021SW )
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4 x 21 inch Watermaker Housings 1000 PSI FRP Fiberglass Desalination Machine Membrane Pressure Vessels ( PV-4021SW )
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FREE SHIPPING to The Contiguous United States!
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Made in The United States!
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1 Year Manufacturer's Warranty
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Quantity Pricing Available!
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International Shipping Available!
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Private Labeling Available!
Hydrocomponents & Technologies Inc. Pressure Vessel Housings are Equivalent to All Major U.S. Brands!
Please reference table below.
- Durable non-corrosive fiberglass housing in natural color. (white color finish optional)
- End entry feed and brine ports are standard on all models.
- Anodized Aluminum Retaining Clamp locking devices for easy installation.
- Flush mount Anodized Aluminum or Acetal co-polymer end plugs with SS backing plates make fitting installation effortless.
- Maximum separation between permeate port and feed/concentrate port allows the use of large fittings.
- Ethylene propylene FDA approved “O” rings are standard. Silicon and other compounds available upon request.
- Universal style models also manufactured to fit membrane of your choice.
- Other lengths available upon request.
- 2.5 inch Fiberglass vessels (2.5"ID, 2.85"OD, max 1000PSI)
- 4.0 inch Fiberglass vessels (4.0"ID, 4.75"OD, max 1000PSI)
| Model # | Membrane size | # of membranes | OAL (in) | Feed | Brine | Permeate |
| PV-2514SW | 2.5"x14" | 1 | 17" | 1/4" | 1/4" | 1/4" |
| PV-2521SW | 2.5"x21" | 1 | 24" | 1/4" | 1/4" | 1/4" |
| PV-2540SW | 2.5"x40" | 1 | 43" | 1/4" | 1/4" | 1/4" |
| PV-2580SW | 2.5"x40" | 2 | 83" | 1/4" | 1/4" | 1/4" |
| PV-25120SW | 2.5"x40" | 3 | 123" | 1/4" | 1/4" | 1/4" |
| PV-4014SW | 4.0"x14" | 1 | 17" | 1/2" | 1/2" | 1/2" |
| PV-4021SW | 4.0"x21" | 1 | 24" | 1/2" | 1/2" | 1/2" |
| PV-4040SW | 4.0"x40" | 1 | 43" | 1/2" | 1/2" | 1/2" |
| PV-4080SW | 4.0"x40" | 2 | 83" | 1/2" | 1/2" | 1/2" |
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AI-Assisted Content & Information Accuracy: We strive to ensure that all product descriptions, specification tables, testing data, and cross-reference information are accurate and up-to-date. However, content presented on this page—including product descriptions, technical specification tables, bulleted data, and associated text—is compiled or formatted with the assistance of artificial intelligence (AI). While we review this content for general accuracy, AI-assisted data can contain errors, omissions, or inaccuracies. All information is provided for general reference purposes only. We are not legally liable for typographical errors, omissions, or inaccuracies within product descriptions, tables, or equivalent-model recommendations. We expressly disclaim all liability for damages, system failures, misapplications, or voided warranties resulting from reliance on any information presented on this site.
Manufacturer Updates & Official Specifications: Manufacturers frequently revise product designs, component materials, and technical specifications without prior notice. Official manufacturer documentation and data sheets are the sole authoritative sources for all product specifications and strictly supersede any physical dimensions, specifications, or visual representations presented on this page. It is the customer's sole responsibility to independently verify all technical data—including but not limited to pressure ratings, dimensions, material compatibility, and performance metrics—against the official manufacturer data sheet prior to purchase and installation.
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