TN 630052 Shutoff Float Assembly for Tennant. A two ball, 1-3/4" diameter float assembly. This float assembly is responsible for shutting off the vacuum motor when the recovery tank is full, preventing the unit from possibly overflowing. Fits Nobles and Tennant models: Nobles Speed Scrub 17 Plus (Battery Models), Speed Scrub 17-20-24-32, Speed Scrub Orbital, T2, A3, AS 256XP, AS 5300T, T3, T3+, T3 Orbital, T3e, A300, T300, T300e, A5, T5, T5e, A500, T500, T500e, 5100, 5280, 5300, 5400, 1510 Vac, 1530 Vac, and 1610 Vacs. Priced Each. Replaces Tennant 630052. Our Part Number TN 630052