Neptune Systems – 4 Meter Tubing for DOS Dosing SystemReplacement Tubing for the Neptune DOS Dosing and Fluid Metering SystemIf you need longer tubing for your DOS dosing system or DDR reservoirs. Extend the distance from your pump to the reservoirs, or the pump to your tank.Two Sizes Available:4 Meters16 MetersNeptune Systems – 4 Meter Tubing for DOS Dosing SystemReplacement Tubing for the Neptune DOS Dosing and Fluid Metering SystemIf you need longer tubing for your DOS dosing system or DDR reservoirs. Extend the distance from your pump to the reservoirs, or the pump to your tank.Two Sizes Available:4 Meters16 MetersProduct code: 6982Item No. CT-NS-DOS-4M