Air pumps and air stones are essential for any reservoir-based hydroponic system — delivering the dissolved oxygen your roots depend on to develop quickly and stay healthy. Without adequate aeration, nutrient solutions degrade within days, root rot takes hold, and plant health deteriorates. Browse our range of single and multi-outlet pumps, air stones, diffuser discs, airline tubing, and valves below.
PondMAX air pumps — Australian-owned, built for continuous use
PondMAX is an Australian-owned brand, designed specifically for Australian conditions. Both CT series pumps feature dual outlets, adjustable airflow control, quiet diaphragm operation, and a 2-year warranty — making them reliable choices for hydroponic reservoirs where aeration runs around the clock. Each pump ships with 2m of silicone airline, 2x ceramic cylinder air stones, and 2x check valves included.
PondMAX CT202 Air Pump — 1.5 L/min per outlet
The CT202 delivers 1.5 L/min per outlet at 4W — well suited to smaller reservoirs, single DWC buckets, or setups where low power draw and quiet operation are priorities. Its dual outlets give you flexibility to run two air stones independently or together from the one unit.
PondMAX CT402 Air Pump — 2.8 L/min per outlet
The CT402 steps up to 2.8 L/min per outlet at 5W — the stronger choice for larger reservoirs, multi-site DWC, or RDWC systems where higher dissolved oxygen demand requires greater airflow. Same dual-outlet design as the CT202, with more output where your system needs it.
Air stones — ceramic diffusers for every reservoir
The AQUA One Ceramic Air Stone Cylinder distributes fine bubbles evenly along its length — the standard choice for DWC buckets and rectangular nutrient tanks where consistent, low-turbulence oxygenation across the full base area matters.
The PondMAX Ceramic Air Stone Ball 50MM disperses bubbles omnidirectionally from a single compact point — useful in smaller or irregularly shaped reservoirs where broad coverage from one location is more practical than directional diffusion. Both air stones are compatible with standard 4mm silicone airline tubing.
