set of 2 O-Rings
#4 in detail parts drawing - second picture
inside diameter is about 1/2 inch
actual size .549 x .103
Original parts by BouMatic LLC
Fits BouMatic Milk Cooler wash tee
Fits larger Bulk Tank Washers Dari Kool, Bou-Matic and D.E.C. milk tank washers
OEM parts
Related spare parts:
1.5 hp drain 4015227
1/2 inch drain hose 5747823
1.5 hp motor with threaded shaft 4016504
updated March 2025
