Excellent quality, durable choice: Durable Plastic Water Valve Kit 385311641 is specially designed for 300, 310, 320 series pedal flush toilets and RV vacuum flush system. OEM Part: 385311641. Wide compatibility, one thing multi-purpose: Not only perfect for the pedal flush toilet of the specified series, but also flexibly applied to the RV vacuum flush system, which is the ideal choice for you to repair and replace the RV toilet, without worrying about the mismatch problem, one thing in hand, a variety of models easily cope with.