★★★★★ 5
Great
All pieces cut to perfection, went together perfectly
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Reviewed in the United States on October 22, 2023
Replaces LP-4021 FilmTec DOW / DuPont Membranes 150 PSI 1000 GPD 4 x 21 inch ( MEM-4021LP )
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Replaces LP-4021 FilmTec DOW / DuPont Membranes 150 PSI 1000 GPD 4 x 21 inch ( MEM-4021LP )Replaces LP 4021 FilmTec DOW DuPont Membranes 150 PSI 1000 GPD 4 x 21 inch ( MEM 4021LP ) 1 YEAR MANUFACTURER'S WARRANTY! MADE IN THE UNITED STATES! WE SHIP INTERNATIONALLY, CONTACT US FOR QUOTE! QUANTITY PRICING AVAILABLE! PRIVATE LABELING AVAILABLE! Call: 1 (760) 598 0189 Email: hctivista@gmail. com Hydrocomponent's membranes are equivalent to all major U. S. brands. PLEASE REFERENCE TABLE BELOW Permeate flow and salt rejection based on the
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Your Replaces LP-4021 FilmTec DOW / DuPont Membranes 150 PSI 1000 GPD 4 x 21 inch ( MEM-4021LP ) orders ship within 1-2 business days.
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- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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Based on 1730 reviews
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Product Reviews
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
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Reviewed in the United States on July 5, 2024
★★★★★ 2
Quality control lacking
One tee conector was missing. Nothing avaliable locally that fits.
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Reviewed in the United States on July 13, 2025
★★★★★ 1
It doesn’t stay in
The pipe keeps coming out. Not worth the money. Not sturdy to hold a top table.
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Reviewed in the United States on February 20, 2024
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly.
Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration.
Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
