Alliance Head Plunger Seal Kit Compatible with Waters – Replaces WAT270938
The Alliance Head Plunger Seal Kit (2/pk) is a precision-engineered replacement for Waters OEM P/N WAT270938, which consists of two WAT270789 seals.
These seals are designed for Waters Alliance series pumps, ensuring leak-free operation, stable pressure, and extended pump life. Manufactured from UHMWPE (Ultra-High-Molecular-Weight Polyethylene) with a stainless steel spring, they provide excellent wear resistance and durability in demanding HPLC workflows.
Key Features
Direct Replacement for OEM P/N WAT270938
Equivalent to the original part (includes 2 × WAT270789).
Broad System Compatibility
Designed for Waters® HPLC models:
2690, 2690D
2695, 2695D
2790, 2795, 2796
Alliance® Series
Durable Materials
UHMWPE: Superior wear resistance and low particle shedding.
Stainless Steel Spring: Maintains reliable sealing force for consistent performance.
Easy Installation
Manufactured to tight tolerances for drop-in replacement without modifications.
