235mm Riser for Jumbo Grease Trap
Risers to fit the Jumbo range of underground grease traps. These raise the invert from 260mm to 495mm. Up to two risers can be used per greasetrap chamber.If the invert is larger than this then a brick riser needs to be prepared.
These risers can be cut down to the exact invert required. The risers also seal into the top of the Jumbo grease management unit. The manhole cover and frame also seal to the riser.