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I talk about the Zurn Wilkins 720A PVB how to take it apart, repair it, the repair kits available, how to put it together, how to winterize it and advice in general about it and a little about trouble shooting it.
Repair Kit links to buy from our webstore:
1/2" - 1" Kits
Complete Kit RK1-720a backflow-suppl...
Bonnet kit backflow-suppl...
Poppet kit backflow-suppl...
1 1/4" - 2" Kits
Complete kit
RK2-720A backflow-suppl...
Ball Valve Handle Tools:
Small one WV100 backflow-suppl...
Larger one WV101 backflow-suppl...
Wider one for wider handles backflow-suppl...