MarMac Construction Products

MarMac MacWrap is a highly-advanced, external joint coupler designed to permanently prevent infiltration at precast concrete structure connections, including reinforced concrete pipe (RCP),...

MarMac PolySeal is a flexible, high-strength pipe coupling that permanently seals and restrains corrugated plastic pipe. PolySeal Couplers are over-engineered, reinforced external joint seals...

MarMac Dissimilar Pipe Couplers (DP Couplers) are engineered to join, seal, and restrain the connections between pipes of differing material and/or pipes of varying nominal size*. These...

MarMac Dissimilar Pipe Couplers (DP Couplers) are engineered to join, seal, and restrain the connections between pipes of differing material and/or pipes of varying nominal size*. These...

MarMac MacWrap is a highly-advanced, external joint coupler designed to permanently prevent infiltration at precast concrete structure connections, including reinforced concrete pipe (RCP),...

MarMacʼs CMP Coupler is a single unit, external sealing band designed to prevent infiltration into corrugated steel pipe drainage systems. The coupling creates a strong, permanent, flexible seal...

MarMac Dissimilar Pipe Couplers (DP Couplers) are engineered to join, seal, and restrain the connections between pipes of differing material and/or pipes of varying nominal size*. These...

MarMac MacWrap is a highly-advanced, external joint coupler designed to permanently prevent infiltration at precast concrete structure connections, including reinforced concrete pipe (RCP),...

MarMac MacWrap is a highly-advanced, external joint coupler designed to permanently prevent infiltration at precast concrete structure connections, including reinforced concrete pipe (RCP),...

MarMacʼs CMP Coupler is a single unit, external sealing band designed to prevent infiltration into corrugated steel pipe drainage systems. The coupling creates a strong, permanent, flexible seal...

MarMacʼs CMP Coupler is a single unit, external sealing band designed to prevent infiltration into corrugated steel pipe drainage systems. The coupling creates a strong, permanent, flexible seal...

MarMac PolySeal is a flexible, high-strength pipe coupling that permanently seals and restrains corrugated plastic pipe. PolySeal Couplers are over-engineered, reinforced external joint seals...