Watts Premier (105331) RO PURE 50 GPD Membrane Unicel (K-40615-B) 10"x4.5" Big Blue Style Pleated 10 Micron Polypropylene Filter Pre-drilled with a factory pin

Pre-drilled with a factory pin hole

Ensures proper fit with the drive gear and piston assembly for leak-free operation

Typical residential whole house lifespan

and high-capacity commercial filtration systems

Watts Premier (105331) RO PURE 50 GPD Membrane Unicel (K-40615-B) 10"x4.5" Big Blue Style Pleated 10 Micron Polypropylene Filter Pre-drilled with a factory pinThe Watts Premier 105331 RO PURE 50 GPD Membrane is a residential reverse osmosis membrane designed exclusively for the RO PURE and WP RO4 systems, delivering up to 50 gallons per day of purified water. This semi permeable membrane removes up to 99% of dissolved solids, heavy metals, and cysts through advanced TFC (thin film composite) filtration technology. SPECIFICATIONS Core Performance Data Daily Capacity 50 GPD Gallons per day at standard