Replacement head for 10" & 20" Big Blue housing Single O Ring OR Double Oring , 3/4" or 1" port.

Replacement head for 10" & 20" Big Blue housing Single O Ring or Double O ring type ,  3/4" or 1 "port.

• BB housing replacement head / Cap for Max Water Big Blue Systems.
• This head has a pressure release button and 1/4" NPTF pressure gauge hole.
• This item does not include the 1/4" NPT Pipe Thread PVC Allen Plug with o ring to close pressure gauge hole if not needed. To add one click here 105871

Single O ring type 3/4" or 1" port  head is for flowing part#

• 20" x 4.5" :
105866, 105867 , 105854, 105855, 105858 and 105859 
• 10" x 4.5" :
105861, 105860 , 105844, 105845, 105850 and  105851 

Double O ring type 3/4" or 1" port  head is for flowing part#

• 20" x 4.5" :
105862, 105863 , 105852, 105853, 105856 and 105857 
• 10" x 4.5" :
105868, 105869 , 105846, 105847, 105848 and  105849 

Double O ring 20" BB 1" NPTF brass port with 18" gauge Hole