12-Pack Greenhouse Film Clamps – Hoop Pipe & Netting Tunnel

Keep Your Greenhouse Covers Firmly in Place

These sturdy plastic greenhouse film clamps are the go-to solution for securing row covers, shade netting, tarpaulins, and plastic films to hoop frames and tunnel pipe structures. Whether you're building a mini garden tunnel, protecting crops with row covers, or setting up a shade structure, these clamps deliver a reliable, adjustable grip that stays put — even in windy conditions.

Made in Mainland China.

Key Features

• Durable Plastic Construction: Made from tough, weather-resistant plastic that won't rust or corrode — built for repeated outdoor use season after season.
• Non-Slip Threaded Design: The integrated threaded grip locks securely onto the pipe or stake, preventing the clamp from sliding or shifting once positioned.
• Adjustable Positioning: Simply reposition the clamp along the frame to customize coverage and tension exactly where you need it.
• Versatile Compatibility: Works with greenhouse film, shade netting, tarpaulins, row covers, sun visors, and more — compatible with hoops, plastic stakes, and round pipes.
• 4 Size Options: Available in 8 mm, 11 mm, 15 mm, and 19 mm inner diameters to fit a wide range of hoop and pipe sizes. Please measure your pipe diameter before ordering.
• Value 12-Pack: Includes 12 clamps — plenty for a full tunnel greenhouse setup or multiple raised bed row covers.

Size Guide

• Style 1: 3 × 4 cm | Inner Diameter: 11 mm | Fits 11 mm rods
• Style 2: 5 × 3.5 cm | Inner Diameter: 15 mm | Fits 15–16 mm rods
• Style 3: 3.4 × 2.8 cm | Inner Diameter: 8 mm | Fits 8 mm rods
• Style 4: 5 × 4 cm | Inner Diameter: 19 mm | Fits 19–21 mm rods

Please allow ±0.5–1 cm variance due to manual measurement. Screen colors may vary slightly from actual product.

Ideal For

• Tunnel greenhouse and hoop house setups
• Row cover and frost protection frames
• Shade netting and sun visor attachment
• Garden tarpaulin securing
• Raised bed and vegetable plot protection
• Floor covering and ground frame structures

What's in the Box

12 × Greenhouse Film Clamps (style/size selected at purchase)

Helpful Resources

Learn more about season extension and row cover best practices from the USDA National Agricultural Library – Greenhouses & Controlled Environments.

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Frequently Asked Questions

Q: How do I know which size greenhouse film clamp to order?

A: Measure the outer diameter of your hoop pipe or plastic stake before purchasing. This set comes in four sizes: 8 mm, 11 mm, 15 mm, and 19 mm inner diameters. Choose the size that matches your pipe diameter for a snug, secure fit. If your pipe is between sizes, size up for easier attachment.

Q: Can these clamps be used outdoors year-round?

A: Yes. The clamps are made from durable plastic that resists rust, moisture, and UV exposure, making them suitable for outdoor use across all seasons. They work equally well in summer shade setups and winter frost-protection tunnels.

Q: What types of covers and netting can these clamps secure?

A: These clamps are versatile enough to hold greenhouse poly film, shade netting, garden tarpaulins, row cover fabric, and sun visors. They clip firmly over most flexible sheeting materials and keep them anchored to hoop frames, plastic stakes, or round pipes without slipping.

Q: How many clamps come in one pack?

A: Each pack includes 12 greenhouse film clamps, giving you enough to fully equip a standard tunnel greenhouse frame or multiple raised bed row cover hoops in a single purchase.