The AQUAKNOT R.O. Membrane Housing is a durable, high-quality casing designed to protect and house reverse osmosis (RO) membranes in domestic water purification systems. Built for reliability and leak prevention, this housing incorporates a double O-ring seal design that ensures double leakage protection. It is compatible with a variety of standard domestic RO membranes—50, 75, 80, and 100 GPD (gallons per day)—making it versatile for many models.
This housing is crafted from food-grade polypropylene (or equivalent safe plastic) to ensure zero contamination of the water stream. It supports easy installation and replacement, allowing RO system manufacturers or service technicians to swap membranes without changing the housing. Its robust build guards against cracks, pressure stress, and environmental wear, helping maintain system integrity over time.
- Double O-Ring Seals for enhanced leak protection
- Universal Compatibility with standard domestic RO membranes (50, 75, 80, 100 GPD)
- Food-Grade Material ensures water safety
- Durable Construction for long-term reliability
- Simple Maintenance allows membrane replacement without replacing the housing
According to product listings, it “works with all domestic 50, 75, 80 & 100 GPD membranes” and offers “double leakage prevention” via its double silicon rings.

