Watts 0887703 Repair Kit
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<b>[Product Information]</b><br>
<ul>
<li>Fits 1/2" - 3/4" Watts 800M4 PVB Lawn Sprinkler Backflow</li>
<li>check disc assembly (disc & disc holder), bonnet O-ring and check spring</li>
<li>float vent disc assembly (vent float, seal & spring) and bonnet O-ring</li>
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<img src='http://ecx.images-amazon.com/images/I/31wX1PjRN6L.jpg'></br>