F3 - F20

  40-Series F3 - F20
On-Off • 0.5 - 6.4 GPH



Model F3 F5 F10 F15 F20
A 81/2" (215mm) 93/16" (233mm) 105/16" (262mm) 113/4" (298mm) 113/4" (298mm)
B 915/16" (252mm) 1011/16" (272mm) 12" (305mm) 133/4" (350mm) 133/4" (350mm)
C 61/2" (164mm) 71/16" (180mm) 81/16" (204mm) 91/16" (230mm) 91/16" (230mm)
D 31/2" (89mm) 31/2" (89mm) 41/8" (105mm) 411/16" (119mm) 411/16" (119mm)
E* VSBT 51/2" (140mm) 51/2" (140mm) N/A N/A N/A
SBT 8" (203mm) 8" (203mm) 7" (178mm) 7" (178mm) 7" (178mm)
LBT 12" (305mm) 12" (305mm) 12" (305mm) 12" (305mm) 12" (305mm)
OEM (Custom) Other combustion head lengths available on request
F 71/4" (184mm) 713/16" (199mm) 811/16" (221mm) 10" (254mm) 10" (254mm)
*Usable tube length will be reduced by as much as 15/8" depending on flange selected.