Absolute Reservoir Top Caps

Top caps for our Absolute reservoirs. Choose from polished Polycast cast acrylic or black acetal. Acetal features options for knurl or no knurl edges. 

Ports are G 1/4" non-recessed design and compatible with any fittings on the market.

Tops are 2.75" in diameter and sit flush with the Absolute reservoir tubes. Acrylic tops are 3/4" thick, acetal tops are 1/2" thick.


  • Reservoir Tube
  • Reservoir Cap (you are here)
  • Pump Top
  • Pump Bottom
  • Vortex Breaker
  • Reservoir Screw Package
  • Xylem D5 Pump
  • Mounting Method
Select Material:
Select Ports:
Select Knurl Grip: