Rittenhouse Hypro D403 Buna Diaphragm and Valve Repair Kit - Complete (D403-RKBUNA)

rittenhouse hypro d403 buna diaphragm and valve repair kit - complete (d403-rkbuna) works on the hypro d403 and d403grgi diaphragm pumps also can be used on the discontinued hypro d303 and d303grgi diaphragm pumps kit includes 3 buna diaphragms (# 9910-800080), 6 valves (# 9910-1889051), 6 valve o-rings (# 9910-1140450), 6 valve o-rings (# 9910-1260420), 6 valve cover o-rings (# 9910-780050), 1 sight glass o-ring (# 9910-390180) ensure your hypro d403 diaphragm pump continues to run smoothly all season long by replacing any worn diaphragms or valves with the replacements included in the rittenhouse hypro d403 buna diaphragm and valve complete repair kit (d403-rkbuna).this is the most extensive repair kit available for the hypro d403 diaphragm pump, as it is a combination of the diaphragm and valve repair kits (9910-kit2423buna and 9910kit2388).if your hypro d403 diaphragm pump is in constant use, you should replace the diaphragms every 3 months or 500 hours and replace the valves every 6 months or 1000 hours to keep your pump running smoothly all season long. a clear indication one or more of the diaphragms have torn is if you notice a milky grey color in the sight glass. stop running the pump and replace the diaphragms immediately because you can cause serious damage to the pump if you continue to run it with damaged diaphragms.rittenhouse hypro d403 buna diaphragm and valve complete repair kit (d403-rkbuna) includes:3 x buna diaphragms (# 9910-800080)6 x valves (# 9910-1889051)6 x valve o-rings (# 9910-1140450)6 x valve o-rings (# 9910-1260420)6 x valve cover o-rings (# 9910-780050)1 x sight glass o-ring (# 9910-390180)