Dylect® Pressure Washer Genuine Spare Part – Water Seal 10×16×4 (Located in Pump Head – High-Pressure Water Seal Position) | NBR Rubber | Compatible Only with Flow Prime Model (Pack of 3)
The Dylect® Water Seal 10×16×4 is a genuine Flow Prime Pressure Washer component designed to provide high-pressure sealing around the plunger inside the pump head. This seal prevents water backflow and leakage during reciprocation, ensuring stable compression and strong pressure output. Made from premium NBR rubber, it withstands heat, water exposure, and continuous reciprocating motion.
Water seals should always be replaced together across all plungers. Service Note: Replace all 3 seals at once to maintain balance and optimal sealing performance. Genuine Dylect Water Seals protect pump efficiency and long-term reliability.
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- GENUINE FLOW PRIME FITMENT – Designed exclusively for the Dylect Flow Prime, this Water Seal ensures correct fitment and sealing inside the pump head to maintain strong, consistent pressure.
- HIGH-PRESSURE WATER SEALING – Prevents backflow and leakage during plunger motion, maintaining proper compression and ensuring stable, high-pressure water output.
- QUALITY NBR RUBBER MATERIAL – Made from Nitrile Butadiene Rubber (Buna-N), providing excellent elasticity, abrasion resistance, and durability under continuous water and pressure exposure.
- LOCATED IN PLUNGER SEAL CHAMBER – Installed inside the pump head’s sealing channel, working with the Seal Bracket and Oil Seal to ensure complete sealing around the plunger.
- SERVICE & LONG-TERM RELIABILITY – Replace all seals across all plungers as a set for best performance. Genuine Dylect seals restore pressure, reduce leakage, and protect long-term pump health.
- GENUINE FLOW PRIME FITMENT – Designed exclusively for the Dylect Flow Prime, this Water Seal ensures correct fitment and sealing inside the pump head to maintain strong, consistent pressure.
- HIGH-PRESSURE WATER SEALING – Prevents backflow and leakage during plunger motion, maintaining proper compression and ensuring stable, high-pressure water output.
- QUALITY NBR RUBBER MATERIAL – Made from Nitrile Butadiene Rubber (Buna-N), providing excellent elasticity, abrasion resistance, and durability under continuous water and pressure exposure.
- LOCATED IN PLUNGER SEAL CHAMBER – Installed inside the pump head’s sealing channel, working with the Seal Bracket and Oil Seal to ensure complete sealing around the plunger.
- SERVICE & LONG-TERM RELIABILITY – Replace all seals across all plungers as a set for best performance. Genuine Dylect seals restore pressure, reduce leakage, and protect long-term pump health.

