Add to favorites
Huining Reverse Osmosis Membrane 50GPD-1812/2012 RO Membrane Housing Kit with 1/4 Quick Connector,Check valve,Water Pipe,Wrench Whole Set for Residential Household Hospital Water Filtration System — Open-Box, 50% Off
Brand: HUINING
Condition: Used - Acceptable
$1132
$2277
-50% Save $1145
Updated: 51 days ago
Description
【Universal Size】 Fits most 3, 4, 5, 6 and 7 stage residential RO filtration systems with flow restrictions rated at 50 gallons per day. RO membrane size: 11.75” X 1.75”, RO membrane housing size: universal compatiable 2.0 inch.
【Food-grade Filtration】Effectively removes impurities down to 0.0001um. Daily water purifying capacity reaches 50GPD at 95% rejection rate.
【Durable Construction】Manufactured with food-grade Polypropylene (PP), thicker constructed, the membrane housing provides better pressure resitance, excelent anti-explosion performance and heat insulation property. It is capable of resisting acids, alcohol, ammonia, oils, plating solutions and other corrosive chemicals.
【What You'll Get】 1 * 50GPD RO Membrane, 1 * Resident Reverse Osmosis Element Housing, 3 * 1/4" Quick-Connect Fittings,1 * Wrench, 1 * Raw material belt,Gift: 3*60 inch water pipe (random colors)
【For DIY】This kit does not include a flow restrictor. In reverse osmosis membrane water purification systems, flow restrictions are essential. So for this kit of 50gpd, we generally recommend that you purchase a 200CC flow restrictor and install it on the wastewater pipe
Specifications:
Model:ULP1812-50
Compliance: NSF/ANSI Standard
Rejection Rate:97%
Average Permeate: 50GPD
Water Recovery Rate: 15%
Replacement Cycle: 15 - 24 months (recommended)
Compatible Membrane Housing: 1812/2012 Housing
Testing Parameters
Feed Water Pressure (MPa): 30-100 psi
Temperature: 40 - 110°F/5-45°C
PH : 3.0 -11.0
Max TDS: 1000 MG/L
Solution Concentr.NaCl(ppm): 250
Turbidity: < 1.0
NTU Max SDI <4.0
Hardness: < 5
GPG Iron: <0.1
Compatible Water Filtration/Purifier System Models:
iSpring RCC7, RCC7P
APEC ESSENCE ROES-100
Global Water RO-505
Express Water RO5DX
Note:
If you have chlorinated water, we recommend you use a Carbon/Sediment Pre-Filter.
The residual chlorine in municipal or city water will destroy the membrane.
If hardness is too high, we recommend you install water softener before RO unit.
Package
1 * 50GPD Ro membrane
1 * Ro membrane housing
3 * 1/4'' connectors
1 * wrench
1 * Raw material belt
Specifications:
Model:ULP1812-50
Compliance: NSF/ANSI Standard
Rejection Rate:97%
Average Permeate: 50GPD
Water Recovery Rate: 15%
Replacement Cycle: 15 - 24 months (recommended)
Compatible Membrane Housing: 1812/2012 Housing
Testing Parameters
Feed Water Pressure (MPa): 30-100 psi
Temperature: 40 - 110°F/5-45°C
PH : 3.0 -11.0
Max TDS: 1000 MG/L
Solution Concentr.NaCl(ppm): 250
Turbidity: < 1.0
NTU Max SDI <4.0
Hardness: < 5
GPG Iron: <0.1
Compatible Water Filtration/Purifier System Models:
iSpring RCC7, RCC7P
APEC ESSENCE ROES-100
Global Water RO-505
Express Water RO5DX
Note:
If you have chlorinated water, we recommend you use a Carbon/Sediment Pre-Filter.
The residual chlorine in municipal or city water will destroy the membrane.
If hardness is too high, we recommend you install water softener before RO unit.
Package
1 * 50GPD Ro membrane
1 * Ro membrane housing
3 * 1/4'' connectors
1 * wrench
1 * Raw material belt
Sold by
Amazon Warehouse
Official Amazon outlet for open-box & returned items
- Backed by Amazon's A-to-Z Guarantee
- 30-day return policy
- Ships from Amazon fulfillment centers
- Price verified on Amazon
Product Details
- SKU:
- awhd-us-b07tlnzj2j
- Model:
- Water Filter
- Country:
- US
- ASIN:
- B07TLNZJ2J
- GTIN:
- 06489374489927
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $11 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for HUINING products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.















