Side‑Fill Cap Sealing Washer 1641‑3484 – Internal Seal for Hydro‑Force Revolution Bottle Cap
This genuine 1641‑3484 Sealing Washer is the internal watertight seal that fits inside the side‑fill cap on the Hydro‑Force Revolution Inline Sprayer. When the side‑fill cap is screwed onto the bottle, this washer creates the tight, leak‑free seal required for proper operation.
Without this washer, the side‑fill cap cannot form a reliable seal, leading to leaks, air draw, loss of pressure and inconsistent chemical delivery. Replacing a worn or missing washer restores correct sealing and keeps your Revolution sprayer performing at its best.
Please Note
• 1 washer is required for the bottle currently in use.
• 2 washers are required to provide a watertight seal on a spare bottle.
Key Features
• Genuine Hydro‑Force sealing washer
• Official part number 1641‑3484
• Fits inside the AS68L side‑fill bottle cap
• Creates a watertight seal when the cap is tightened
• Prevents leaks, air draw and pressure loss
• Essential for correct sprayer performance
Compatible With
Instruction Manual & Parts List
When to Replace
• Leaking from the side‑fill cap
• Cap no longer seals tightly
• Washer is worn, flattened, cracked or missing
• Bottle draws air or loses pressure during spraying
Why Choose This Washer
This is the correct OEM internal sealing washer for the Hydro‑Force Revolution side‑fill cap. Replacing it ensures a proper watertight seal and keeps your sprayer operating reliably.