The Series 450 Riser was made to increase the depth of the Series 450 Pit by 300mm. Risers are used so that pits are deep enough to intersect with pipelines that are deeper in the ground. The slope of the land has no effect on the need for a riser.

Also Available in:

DP-250A (250x250x285mm Aluminium Grate)

DP-250P (250x250x285mm Plastic Grate)

DP-S300A (345x345x325mm Aluminium Grate)

DP-S300G (350x350x325mm Galvanised Grate)

DP-S450G (560x560x510mm Galvanised Grate)

DP-S600R (300mm)

DP-S600G (710x710x660mm Galvanised Grate)