Tank O-ring set
Replacement O-rings for the Pilot Line FRV Friction Tester water tank. They seal the 3.25" ID acrylic tank (FRV-TNK) against the heated base, so the bath stays leak-free through daily fills, draining and temperature cycling. Sold as a pair, which is the two your machine uses.
Scheduled Maintenance
Replace both seals at planned service intervals, before they start to weep.
Leak Repair
Stop drips at the tank base caused by worn, nicked or compressed O-rings.
Tank Reinstallation
Fit fresh seals whenever the tank is removed for cleaning or replacement.
















