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GC Tek unions, sweeps & pressure gauges
The small parts that make a clean install
Schedule 80 unions are the heavy, robust ones GC Tek ships on the NishikigoiUV and specs on serious plumbing runs — every intake line needs one for proper filter and pump operation. Schedule 40 sweeps instead of hard 90s greatly reduce head loss. Male-thread x slip unions let you run 2" pipe on pumps with 1.5" or 2" threaded ports. The standard gauge is the true-reading unit fitted to every GC Tek filter; the liquid-filled gauge is for really accurate readings.
| Item | Price |
|---|---|
| Schedule 80 union — 2" slip x slip | $19.95 |
| Schedule 80 union — 3" slip x slip | $48.95 |
| Schedule 80 union — 4" slip x slip | $89.95 |
| 2" slip x 2" slip union | $19.95 |
| 1.5" male thread x 2" slip union | $24.95 |
| 2" male thread x 2" slip union | $25.95 |
| 2" Sch 40 sweep elbow | $12.85 |
| Replacement pressure gauge | $32.75 |
| Liquid-filled pressure gauge | $49.95 |
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.

