Item number 4 in the above schematic
CLNA1 STK
PUMP Rubber Small O-Ring item#4 Everbilt 2HP 2 HP Lawn Sprinkler HDEFLS209 ORING
$11.95
Brand
EVERBILT
MPN
EFLS20-HD, 1002166137, 300534063, HDEFLS209, MMASTER, W733799N68
condition
New