SPRING MODULE FOR EITHER CHECK FOR THE MODELS 850 AND 870 2 1/2"-3".  AND THE #2 CHECK ONLY ON THE MODELS 860 AND 880.  

THESE DO NOT WORK IN THE "LF" (LEAD FREE) MODELS

PART# 905144  6" 850/860/870/880 SPRING

PART# 905145  SPR MOD 850/860/870/880 8"

PART# 905153  Disc assembly for 850/856/870/876 4" assemblies. Comes with cover o-ring

PART# 905155  DISC ASSY 8" 850/856/870/876

PART# 905163  Rubber total kit for both check valves for a 4" 850/870.

RUBBER KIT 850/856/870/876 6"  THIS KIT DOES NOT FIT THE LEAD FREE VERSIONS OF THESE MODELS THAT WOULD START WITH "LF"

PART# 905165  RUBBER 850/856/870/876 8"-10"

CHECK DISC ASSEMBLY AND COVER O-RING FOR EITHER CHECK 850/856/860 2.5"-3"

RUBBER KIT FOR BOTH CHECKS  FOR MODELS 850/856 2 1/2"- 3" 

THIS KIT IS NOT FOR THE LEAD FREE (LF) MODELS.

PART# 905339† OPPET ASSY 850/860 1/2"-3/4"

PART# 905340 850/860/880 also fits lead free versions, LF850 and LF860 1" single poppet assembly for either check.

POPPET ASSEMBLY FOR  850/860 AND THE LEAD FREE VERSIONS, LF850/LF860 SIZES, 1 1/4", 1 1/2" AND 2"

PART# 905342† RUBBER KIT 850 1/2"-3/4"

PART# 905343 850/LF850 1" check rubber kit for both checks. Can also be used for the 860/LF860 1" checks.

PART# 905344† RUBBER KIT 850 1 1/4"-2"

PART# 905351 CK MODUAL FOR EITHER THE #1 OR #2 FOR MODELS 850/LF850 AND 850U/LF850U AND ONLY THE #2 CHECK FOR MODELS  860/LF860/880.  SIZES 1.25"-2"

PART# 905467  LFRK 850/860/870/880 D 4"

PART# 905527  850/860 CK REPLACEMENT KIT 3"

PART# 905534 850/860/870 CK REPLACEMENT 4". 850/870 4" COMPLET CHECK ASSEMBLY FOR EITHER #1 OR #2 CHECKS. ALSO FOR #2CHECK ON THE 860.

Seat ring arm assembly for 4" 850/860/870/880 for either #1 or #2 check.

Febco 6" LF850, LF870 Double Check lead free spring module repair kit for first or second check .

And the LF860, LF880 Reduced Pressure lead free spring module repair kit for the  second check.

Kit includes spring module with a cover o-ring. Ordering # 905472

Febco 6" 850-860 seat ring arm assembly. Ordering # 905488

Picture is of the one used in the lead free models.  The parts are similar only made out of brass in the non lead free models.

Febco 8"-10" 850/870 repair kit- check module. Kit includes seat ring and arm assembly, seat gasket, check disc assembly, spring assembly, load pin, two retainer clips, cover o-ring, cover bushing and four nuts. Ordering # 905539

Febco  4" 850/860/870/880 Replacement Spring. It is either for #1 or #2 spring for the 850/870 and only the #2 spring for the 860/880.