Marine Depot Hi-Silicate Removal TFC Replacement Membrane 25GPD

10% off your order (some exclusions apply) w/ coupon code UNITED, ends 02/20

$45.99 $31.99 Save: $14.00 (30%)

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160 $1.60 off a Future Purchase

This item is in stock in our East and West Coast warehouses

CP1811

SHIPS FREE!

Marine Depot

The key component for any reverse osmosis unit is its membrane. The membrane will determine the type of contaminants removed and how much water the unit will produce. Our Captive Purity Hi-S (High Silicate) membranes are the gold standard and will remove 96% of nitrates and up to up to 99.5% of silicate. Chlorine will ruin TFC, Hi-F, and Hi-S membranes so prior carbon filtration is required. All Marine Depot Membranes and RO and RO/DI units are designed and manufactured in the USA.

Please note that these Hi-S replacement membranes are interchangeable with Kent Marine, and SpectraPure RO or RO/DI unit. We have researched and tested the best replacement membranes among all manufacturers, and offer only the best available.


Manufacturer Info

Marine Depot was started in 1998 by a self-professed reef geek and premed student Ken Wong. Ken envisioned a one-stop shop where customers could find everything they needed, from technical product specifications, reef aquarium information, expert advice on the hobby and friendly one-on-one customer support. Having grown from a one-man crew to being one of the world’s largest suppliers of reef and marine aquarium products, this very core philosophy still lives strong in the Marine Depot culture 17 years later.

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50 Reviewers (98%) would recommend this

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“Works fine”
5.0

I have no way of measuring the TDS on these, but I replace them every year or so depending on my usage and keep a variety of coral and fish with bright LED lights and very little algae growth and no detectable phosphates. This membrane appears to be working as it should.

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“Great!”
5.0

Product works excellent for my captive purity 75 gal RO/DI filter! TDS in = 280 and TDS out = 0!

  • 1
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“RO filter”
5.0

I bought this unit to replace my spectrapure 90 GPD Filter. I have a 4 stage RO/DI filter and replaced the Other 3 filters also. We have well water where I live and This unit has been great. The new RO filter is working As I expected! So far I've only had to produce a 6 gallon Bucket of top of...Read More

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“Right Stuff”
5.0

Price was lowest found, it installed easily, and the water output from it registered 0 on the TDS meter. What else could you want?

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“90g memberane”
5.0

100% I recommend

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“Works good”
5.0

Dual RO with Spectapure 4 filter SuperDI set provides pure water at reasonable volume per day rates.

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“Membrane”
5.0

Love it!!!!

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50 Reviewers (98%) would recommend this

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