24 Volt dc plug-in? relay. Fits Tennant 3540 wet/dry vac, A3, A300, A5, T2, T3, T3+, T3e, T300, T300e, T3 Orbital, T5e AND Nobles Speed Scrub 17-24, SS3, Speed Scrub 24-32, SS5, Speed Scrub 300, SS300, Typhoon 16B. (serial numbers 10000000-20000000)
Fits Tennant 1012216