Rich and Charlie use industry standard parts, know what they’re doing, and don’t try to rip you off on the price. The new membranes fit exactly where the old ones were and with the new vessel, metal end caps, and two new hoses there are no leaks! A first for our system. And with the true 40″ membranes we’re getting 40 gallons per hour water production. An increase of 8 gallons per hour over the old system.