300mm (12″) Square Riser for Square Drainage Box

Our 300mm – 12″ riser fits our 300mm – 12″  square drainage box. They allow easy access to grade so that the boxes can be serviced or easily inspected. Unlike other boxes on the market, our risers can be screwed together to maintain their integrity and create a watertight connection.

Our 300mm – 12″ riser fits our 300mm – 12″  square drainage box. They allow easy access to grade so that the boxes can be serviced or easily inspected. Unlike other boxes on the market, our risers can be screwed together to maintain their integrity and create a watertight connection.
300mm (12″) Square Riser for Square Drainage Box

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300mm (12″) Square Riser for Square Drainage Box

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300mm (12″) Square Riser for Square Drainage Box

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300mm (12″) Square Riser for Square Drainage Box

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