Skip to content
Your cart is empty
Continue shopping
Have an account?
Log in
to check out faster.
FREE SHIPPING ON ORDERS OVER $150
FREE SHIPPING ON ORDERS OVER $150
Water Systems
Water Systems
Aquarium
Drinking Water
Coffee Lovers
Hydroponics
RO
Add-ons
Add-ons
Aquarium Add-Ons
Drinking Water Add-Ons
Hydroponics Add-Ons
Media Reactors
Pump Kits
Level Controllers
Filters
Filters
Filter Kits
Filter Upgrade Kits
RO Membranes
Membrane Upgrade Kits
DI Cartridges
Sediment
Carbon
Bulk Resin
Litermeter
Litermeter
Litermeter Modules
Replacement Parts
Parts & Supplies
Parts & Supplies
Faucets
Fittings
Housings & Clips
Pumps
Tubing
Valves
Bladder Tanks
Electrical Parts
Flow Restrictors
Testing Supplies
Filter Wrenches
Probe Trays
Meters
Know Your Filters
About Us
Get Support!
Log in
Cart
Search
Search
Log in
Cart
Water Systems
Aquarium
Drinking Water
Coffee Lovers
Hydroponics
RO
Add-ons
Aquarium Add-Ons
Drinking Water Add-Ons
Hydroponics Add-Ons
Media Reactors
Pump Kits
Level Controllers
Filters
Filter Kits
Filter Upgrade Kits
RO Membranes
Membrane Upgrade Kits
DI Cartridges
Sediment
Carbon
Bulk Resin
Litermeter
Litermeter Modules
Replacement Parts
Parts & Supplies
Faucets
Fittings
Housings & Clips
Pumps
Tubing
Valves
Bladder Tanks
Electrical Parts
Flow Restrictors
Testing Supplies
Filter Wrenches
Probe Trays
Meters
Know Your Filters
About Us
Get Support!
Home
Membrane upgrade kits
Membrane Upgrade Kits
Filter and sort
Filter and sort
Product type
Product type
Add-ons
More filters
More filters
kit
membrane
Membrane Upgrade Kits
reverse-osmosis
Type_Filter Upgrade Kits
Upgrade
Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
Sort by:
4 products
4 products
Clear all
Sort by:
Featured
Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
Clear all
Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
Sort by:
Sort
Product type
0 selected
Reset
Add-ons
Filter
More filters
0 selected
Reset
kit
membrane
Membrane Upgrade Kits
reverse-osmosis
Type_Filter Upgrade Kits
Upgrade
Filter
Add-ons
SpectraPure® 150GPD Membrane Upgrade Kit - 3:...
No reviews
$71.99 USD
/
per
Add to cart
Add-ons
SpectraPure® 150GPD Membrane Upgrade Kit - 2:...
1 review
$71.99 USD
/
per
Add to cart
Add-ons
SpectraPure® 300GPD Membrane Upgrade Kit - 3:...
No reviews
$132.99 USD
/
per
Add to cart
Add-ons
SpectraPure® 300GPD Membrane Upgrade Kit - 2:...
No reviews
$132.99 USD
/
per
Add to cart
Filter and sort
SUBHEADING
Recently viewed products
Choosing a selection results in a full page refresh.
.product-single__photo {max-width: 300px;} .product-single_photo {max-height: 500px;}