Graf Carat-XL 2650 Gallon Underground Water Storage Tank

Graf Carat-XL 2,650 Gallon Underground Cistern with Pedestrian Manway, 14" Telescopic Riser and Childproof PE Lid. Supports up to 12 tons of vehicle loading.

Graf Carat S 3400 Gallon Modular Cistern

Graf Carat S 3400 Gallon Underground Modular Cistern with Pedestrian Manway, 14" Telescopic Riser and Childproof PE Lid.

Graf Carat S 5100 Gallon Modular Cistern

Graf Carat S 5100 Gallon Underground Modular Cistern with Pedestrian Manway, 14" Telescopic Riser and Childproof PE Lid.

Centrifugal Filter Stainless Steel Wall Bracket

Stainless Steel Wall Bracket for Small and Large Centrifugal filters.

Graf Calming Inlet

Water from the filter is fed into the tank via the Calming Inlet to prevent swirling of the water, disturbance of fine sediments and to introduce oxygen at the bottom of the tank. This device also helps prevent mosquitoes.

Graf Internal Basket Filter Package

Internal basket filtration system to clean the rainwater inside the tank riser. Space-saving filter technology integrated in the tank – only 1 cover in the garden.

• 100% water yield – ideal for smaller roof surfaces
• Maximum 3,750 sq. ft. of roof surface
• 4" connections

Graf Minimax® External Cleaning Unit

The Minimax® external cleaning unit provides an intense water jet for cleaning the Minimax® series filter cartridge, keeping routine maintenance intervals to a minimum.

Graf Minimax® Internal Filter Package

Internal self-cleaning filtration system to clean the rainwater inside the tank riser. Space-saving filter technology integrated in the tank – only 1 cover in the yard.

Graf Multi-shaft Stormwater Management System - 16 in.

The new Multi-shaft stormwater management system consists of modular components for filtration, stormwater control, infiltration/detention systems, inspection shafts, choke drains and pump wells.

Basic system consists of inlet, distributor module and pedestrian telescopic riser.

Graf Multi-shaft Stormwater Management System - 24 in.

The new Multi-shaft stormwater management system consists of modular components for filtration, stormwater control, infiltration/detention systems, inspection shafts, choke drains and pump wells.

Basic system consists of inlet, distributor module and pedestrian telescopic riser.

Graf Opticlean® Sprayhead

The Opticlean® cleaning unit provides 16 intense water jets for cleaning the Optimax® filter cartridge, keeping routine maintenance intervals to a minimum.

Graf Optimax Pro® Internal Filter Package

Internal self-cleaning cascade filter for underground cisterns and above-ground water tanks. Suitable for roof areas up to 3,750 sq. ft. Only one cover in the yard.

Graf Optimax® Pro Internal Filter

Internal self-cleaning cascade filter for underground cisterns and above-ground water tanks. Suitable for roof areas up to 3,750 sq. ft.

Graf Overflow Siphon

Dirt particles that are lighter than water (e.g. pollen & dust) settle on the water surface as a floating layer. This floating layer is removed when the tank overflows by means of the overflow siphon in the tank. Also aids in mosquito prevention.

Graf Overflow Siphon with Rodent Guard

Differs from the standard overflow siphon with the inclusion of a slotted steel rodent guard. Dirt particles that are lighter than water (e.g. pollen & dust) settle on the water surface as a floating layer. This floating layer is removed when the tank overflows by means of the overflow siphon in the tank. Also aids in mosquito prevention.