# Heavy-Duty Manual Siphon Primer Pump for All Liquid Transfer Needs
### Core Advantages:
1. **Durable Oil-Resistant Pump Construction**: Crafted from high-density oil-resistant rubber, this pump is engineered to withstand prolonged exposure to gasoline, diesel and all petroleum products without cracking or premature aging. It stops fluid leaks completely, so you can count on it for years of reliable use even with regular operation.
2. **Corrosion-Resistant Aluminum Alloy Fittings**: The inlet and outlet ports are precision-cut from high-grade aluminum alloy, which is fully rust-proof and wear-resistant. They lock tightly with standard fuel hoses to create a leak-proof seal, for stable, secure connections that take just minutes to install.
3. **Universal Size Compatibility**: We offer this pump in 4 common connector diameters: 6mm, 8mm, 10mm and 12mm, all made to standard industry specifications. They fit most fuel hose models available on the market, so you can use it for different equipment without any extra modifications.
4. **Integrated One-Way Check Valve**: The precision-manufactured internal check valve guides fluid to flow only in the marked direction automatically, stopping backflow entirely when you’re pumping. This greatly improves transfer efficiency, so you don’t have to waste time on repeated priming steps.
5. **Ergonomic Anti-Slip Squeeze Bulb**: The rubber bulb is textured with an anti-slip grid pattern to boost friction when you press it. It gives you a comfortable, firm grip that won’t slip while you work, and minimizes hand strain even after long periods of pumping.
### Product Details:
- Category: Manual fuel siphon primer pump
- Materials: Main body: oil-resistant rubber; Connectors: aluminum alloy
- Connector Size Options: 6mm / 8mm / 10mm / 12mm
- Color: Black (pump body) + Silver (connectors)
- Suitable Scenarios: Perfect for fuel transfer, system priming and air bleeding for cars, motorcycles, boats, small construction equipment, and also suitable for siphoning all non-corrosive liquids
- Package Includes: 1 Piece of Siphon Primer Pump
### Warm Reminders:
1. Listing images do not show the actual product size, please check the size specifications in the description before purchasing.
2. Slight measurement error (1-3mm) is normal due to manual measurement, we appreciate your kind understanding.
3. The actual color of the product may differ slightly from the listing images due to variations in monitor calibration.
The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.
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