Hulk Coupling - Universal sewer and drain repair coupling by Fernco

One coupling per nominal pipe size connects:

Clay
Concrete
Ductile Iron
Orangeburg

Duriron
Cast Iron
Steel
Plastic

* See chart for specific connections

Part Number	Size	Dimensional Range
HULK4	4”	5.60” - 4.20”
HULK5	5”	6.70” - 5.30”
HULK6	6”	8.00” - 6.20”
HULK8	8”	10.15” - 8.40”
HULK10	10”	12.75” - 10.50”
HULK12	12”	15.30” - 12.50”

Benefits

UNMATCHED QUALITY & PERFORMANCE: Built to last the life of the plumbing system, Fernco couplings are made from elastomeric polyvinyl chloride for a strong, leak-proof fitting that’s resistant to chemicals and sewer gases.
CONNECT VARIOUS PIPE TYPES: One universal coupling per nominal size connects most pipe materials
SPECS & CODES: Complies with IPC, UPC, ASTM C 1173 AND CSA B602
HEAVY DUTY CONSTRUCTION: Stainless Steel Ribbed Construction with corrosion resistant high torque 316 series stainless steel clamps
PATENTED DESIGN: U.S. Pat. No. D956937

Videos

Compatibility Chart

Please side-scroll to view entire chart

COUPLING RANGE	5.60” - 4.20”		6.65” - 5.30”			8.00” - 6.20”			10.15” - 8.40”		12.75” - 10.50”		15.30” - 12.50”
	HULK4		HULK5			HULK6			HULK8		HULK10		HULK12
CLAY	4”	5”	4”	5”	6”	4”	5”	6”	6”	8”	10”	12”	10”	12”	14”	15”
Eastern Standard Clay	5.23			6.31			6.31	7.44		9.84	11.99			14.36
Pacific Clay	5.36		5.36					7.93		9.93			12.88	15.30
Gladding McBean Clay	5.31		5.31					7.87			12.47			14.52
Building Products Clay	5.20							7.75		9.80	12.40			14.40
Can Clay Denlok						7.64			9.88				13.82
Mission Clay	5.37		5.37	6.65			6.65	7.68		9.90	12.43			14.46
Mission No Dig													13.50
Logan Clay	4.92							7.52		9.70	12.08			14.36
CAST AND DUCTILE IRON	4”	5”	4”	5”	6”	4”	5”	6”	6”	8”	10”	12”	10”	12”	14”	15”
Ductile Iron	4.80							6.90		9.05	11.10			13.20	15.30
Duriron	4.76				6.69			6.69		9.02	11.25			13.25
Extra Heavy Cast Iron	4.50	5.50		5.50	6.50			6.50		8.62	10.75	12.75		12.75
Service Weight Cast Iron	4.30	5.30		5.30	6.30			6.30		8.38	10.50	12.50		12.50
No Hub Cast Iron	4.38	5.30		5.30	6.30			6.30		8.38	10.56	12.50		12.50
STEEL	4”	5”	4”	5”	6”	4”	5”	6”	6”	8”	10”	12”	10”	12”	14”	15”
Stainless Steel	4.50	5.563		5.56	6.625			6.625		8.625	10.75	12.75		12.75
Steel	4.50	5.563		5.56	6.625			6.625		8.625	10.75	12.75		12.75	14.00
COPPER	4”	5”	4”	5”	6”	4”	5”	6”	6”	8”	10”	12”	10”	12”	14”	15”
Rigid Copper (TYPES K,L,M)		5.125			6.125					8.125
PLASTIC	4”	5”	4”	5”	6”	4”	5”	6”	6”	8”	10”	12”	10”	12”	14”	15”
SDR-35 ASTM-3034	4.22				6.28			6.28		8.40	10.50	12.50		12.50		15.30
PS-46, PS-75, PS-115 (ASTM-F679)
Thinwall Plastic (S&D)		5.30		5.30	6.27			6.27		8.16
Plastic Schedule 40, 80, 120	4.50	5.563		5.56	6.625			6.625		8.625	10.75	12.75		12.75	14.00
HDPE Pipe (DIPS)	4.80							6.90		9.05	11.10			13.20	15.30
HDPE Pipe (IPS)	4.50	5.56		5.56	6.63			6.63		8.63	10.75	12.75		12.75	14.00
ULTRA RIB™										8.81	11.02			13.10
ULTRA CORR™
C900 AND C905	4.80							6.90		9.05	11.10			13.20	15.30
CONTECH A-2000™	4.30				6.42			6.42		8.60	10.79			12.80
Royal Kor Flo™										8.60	10.78			12.79
ARMCO TRUSS										9.40	11.80			14.10
CONCRETE	4”	5”	4”	5”	6”	4”	5”	6”	6”	8”	10”	12”	10”	12”	14”	15”
CONCRETE Dimensions will vary by manufacturer and class of pipe	5.50 MIN		5.50 MIN	6.50 MIN			6.50 MIN	7.75 MIN		10.00 MIN	12.45 MIN			14.50 MIN
ORANGEBURG	4”	5”	4”	5”	6”	4”	5”	6”	6”	8”	10”	12”	10”	12”	14”	15”
Orangeburg Bituminous Fiber (Actual sizes may be larger than stated size)	4.64			5.82				6.96		9.14