10/05/2026
STOP THE STINK. KEEP THE ADVENTURE. 🚐
No water sitting in the trap. Nothing to freeze.
The HepvO Waterless Trap replaces a traditional P-trap with a flexible membrane that opens to let water drain, then closes to help keep sewer odors out.
A compact upgrade for RV sinks, showers, and tight plumbing spaces.
✅ Helps block sewer odors
✅ No trapped water to evaporate or freeze
✅ No winterizing needed for the HepvO trap itself
✅ Space-saving design
✅ Vertical or horizontal installation options
Give your RV plumbing an upgrade with Drain Master.
Shop now: https://drainmaster.com/rv/hepvo-waterless-valve