Wilkins: 2 1/2″ – 4″ – First Check Module with Retainer Clip for a:  375A {OR} 4″ 375  RP
 
     • 2½” – 4″: 375A
     • 4″: 375
 
(Previously 3709-300)
 
 
Kit Includes:
1st Check Module and Retainer Clip