Features
• Constructed of 316 Stainless Steel
• No special tools or training required to service the pump
• Drop tube intake option allows for deeper sampling
• Compatible with geocontrol PRO™ and 300 psi & 500 psi BP Controllers
*Replacement PTFE bladders also available
| Part Number | GT-1.66X36P | GT-1.66X18P | GT-850X18P | GT-675X18P |
| Pump Housing | 316 Stainless Steel | 316 Stainless Steel | 316 Stainless Steel | 316 Stainless Steel |
| Pump Ends | 316 Stainless Steel | 316 Stainless Steel | 316 Stainless Steel | 316 Stainless Steel |
| Bladder Material | Virgin PTFE | Virgin PTFE | Virgin PTFE | Virgin PTFE |
| Outer Diameter | 1.66" O.D. | 1.66" O.D. | 0.850" O.D. | 0.675" O.D. |
| Length With Screen | 40" L | 19" L | 18 5⁄8" L | 18 3⁄4" L |
| Weight | 5.0 lbs | 3.0 lbs | 1.1 lbs | 0.83 lbs |
| Volume/Cycle | 11 oz. (310 ml) | 5 oz. (150 ml) | 0.9 oz. (29 ml) | 0.5 oz. (15 ml) |
| Min. Well Interior Diameter | 2" I.D. | 2" I.D. | 1" I.D. | 0.75" I.D. |
| Max. Operating Pressure | 100 psi (6.9 bar) | 100 psi (6.9 bar) | 100 psi (6.9 bar) | 100 psi (6.9 bar) |
| Min. Operating Pressure | 5 psi (0.3 bar) ash* | 5 psi (0.3 bar) ash* | 5 psi (0.3 bar) ash* | 5 psi (0.3 bar) ash* |
| Max. Smapling Depth | 200 ft (60 m) | 200 ft (60 m) | 200 ft (60 m) | 200 ft (60 m) |
| Replacement PE Bladder | GT-21150056-E | GT-21150056-E | GT-21150099-E | GT-21150101 |
Tubing Required Air
Water (Discharge) | WA-1/4-LDPE-100
WA-3/8-LDPE-100 | WA-1/4-LDPE-100
WA-3/8-LDPE-100 | WA-1/4-LDPE-100
WA-1/4-LDPE-100 | WA-1/4-LDPE-100
WA-1/4-LDPE-100 |



























