RV Water Inlet Funnel – 3D Printed Wide Mouth Refill Tool

RV Water Inlet Funnel – Portable 3D Printed Wide Mouth Refill Tool for Trailers, Vans & Motorhomes

Make water refills on the road fast, clean, and spill-free. This 3D Printed RV Water Inlet Funnel is a must-have travel accessory for RV owners, campers, and road-trip enthusiasts. Crafted from durable PE (polyethylene) material, its wide mouth design and lightweight build make topping off your freshwater tank effortless — whether you're parked at a campsite or off-grid on an adventure.

Key Features

• Wide Mouth Design: Enables fast, efficient freshwater transfers with minimal mess, reducing spills and saving time at the fill station.
• Extended Reach Functionality: Allows flexible equipment positioning in tight spaces — ideal for RVs, travel trailers, camper vans, and motorhomes.
• Overflow Prevention: Smart funnel geometry helps direct water flow cleanly into the tank inlet so you don't waste a drop.
• Heat Resistant PE Material: Holds up reliably in warm summer conditions, giving you consistent performance even when filling under direct sun.
• Universal Fit: Compatible with a wide range of RV, trailer, and motorhome water inlet systems — a versatile tool for virtually any travel setup.
• Lightweight & Compact: Weighs just ~63 g and measures approximately 10 × 8 × 5 cm (3.94 × 3.15 × 1.97 in), so it tucks away easily in any storage compartment.
• 3D Printed Precision: Each funnel is produced via 3D printing for a consistent, accurate fit and a sturdy build that stands up to repeated use.

Specifications

What's in the Box

• RV Water Inlet Funnel × 1

Note: Slight color variation may occur due to lighting and display settings. Dimensions are measured manually and may have minor tolerances.

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For safe RV water system practices and tips on freshwater tank maintenance while camping, visit the CDC Healthy Water – Drinking Water While Traveling resource.

Frequently Asked Questions

Q: What material is the RV Water Inlet Funnel made from?

A: The funnel is made from PE (polyethylene) and produced using 3D printing technology. PE is a durable, lightweight, and heat-resistant plastic well-suited for outdoor and automotive use.

Q: Will this funnel fit my RV or travel trailer's water inlet?

A: This is a universal RV water inlet funnel designed to work with a wide variety of RV, camper van, trailer, and motorhome water inlet systems. Its wide mouth accommodates standard fill hoses and nozzles used at most campgrounds and fill stations.

Q: How large is the funnel, and is it easy to store?

A: The funnel measures approximately 10 × 8 × 5 cm (3.94 × 3.15 × 1.97 inches) and weighs only about 63 grams. It's compact and lightweight enough to slip into a storage compartment, glove box, or travel bag without taking up noticeable space.

Q: Does this funnel help prevent spills when filling the water tank?

A: Yes! The wide mouth and overflow-prevention geometry are specifically designed to channel water cleanly into your tank inlet, significantly reducing spills and wasted water during the filling process.

Q: Is the funnel safe to use in hot weather or direct sunlight?

A: Absolutely. The PE material offers heat resistance suitable for typical outdoor and summer camping conditions, ensuring the funnel maintains its shape and performance even when used under direct sun.