GC Tek NishikigoiAIR Premium Air Pump

$239.95

Model:

AIR-30 — 30 L/min · 18 W AIR-50 — 54 L/min · 25 W AIR-80 — 80 L/min · 50 W AIR-120 — 160 L/min · 105 W

Variant

$239.95

GC Tek NishikigoiAIR · premium air pumps · aluminum casing

Quiet, durable, high-output air

Aluminum-cased diaphragm air pumps from GC Tek's Nishikigoi line: high output, quiet running, built to sit outside by the filter pit for years. Four sizes from 30 to 160 liters per minute. Run air stones and rings, drive an ALISS life-support valve on an AlphaONE, or aerate the media in a Wakimizu shower.

Authorized GC Tek dealerGenuine product, factory warranty, distributor-direct.

Warranty & support handled hereWe set up, troubleshoot and handle warranty claims in-house.

Ships from Southern CaliforniaIn-stock parts & media ship from Upland, CA. Local pickup available.

New for 2026. GC Tek's Nishikigoi line — designed in Chandler, Oklahoma, built to the standard koi keepers expect from the AlphaONE. First shipments started June 2026; better model-by-model photos are on the way from GC Tek.

Aluminum casing

Sheds heat and shrugs off weather.

Quiet running

Diaphragm design — no oil, low noise.

Sized for koi ponds

30 L/min for a small pond up to 160 L/min for a big one on multiple diffusers.

Works with ALISS

Keep your AlphaONE media alive during a pump failure.

Model	Air output	Power	Price
AIR-30	30 L/min	18 W	$239.95
AIR-50	54 L/min	25 W	$259.95
AIR-80	80 L/min	50 W	$534.95
AIR-120	160 L/min	105 W	$749.95

Rule of thumb: about 1 L/min per 100 gallons for a lightly stocked pond; double it for heavy koi loads, deep ponds, or if the pump also feeds an ALISS valve.

Air diffusers & manifolds (Matala)All GC Tek

GC Tek
Grand Champion Technologies · Chandler, Oklahoma · pond filtration built in the USA

Mystic Koi & Water Gardens — authorized GC Tek dealer, Upland, California.
Questions on sizing? Call the shop and talk to someone who runs these filters.