Grandio Greenhouse Drain Kit

Grandio Greenhouse Drain Kit

The Grandio Greenhouse Drain Kit is a complete downspout system designed specifically for Grandio greenhouse gutter systems. At $79, it directs rainwater away from all four corners of your greenhouse, protecting your foundation, preventing water pooling, and keeping the area around your structure dry year-round.

What's Included in the Grandio Drain Kit?

One kit contains everything needed to fully equip a single Grandio greenhouse with corner downspouts:

• 4 × 20mm black downspout pipes
• 4 × Gutter attachment gaskets
• 4 × Side wall brackets with screws

All components mount directly into the aluminum frame and gutter for a clean, secure fit that matches the look of your Grandio greenhouse.

Why Does a Greenhouse Need a Drain Kit?

Without proper drainage, rainwater collects at the base of your greenhouse, which can erode soil, undermine your foundation or base kit, and create muddy, slippery conditions around the structure. Over time, standing water can also work its way under the base and affect interior growing conditions. The Grandio Drain Kit channels water away from all four corners simultaneously, solving this problem with a single, low-cost installation.

How Do You Install the Grandio Greenhouse Drain Kit?

The drain kit is designed for straightforward DIY installation with no specialized tools required. Each downspout attaches to the existing Grandio gutter system at the four corners of the greenhouse using the included gaskets and side wall brackets. The components mount directly into the aluminum frame for a secure, rattle-free fit. Most installations can be completed in under an hour.

Is the Drain Kit Compatible with All Grandio Greenhouses?

The Grandio Drain Kit is designed for use with Grandio greenhouse gutter systems. If you're unsure whether it's compatible with your specific Grandio model, contact the Grandio team before ordering.

Key Features

• Complete 4-corner drainage — one kit covers all four downspout positions
• Designed for Grandio gutters — mounts directly into the aluminum frame
• 20mm black downspout pipes — durable and weather-resistant
• Clean, integrated look — matches the Grandio greenhouse aesthetic
• Easy DIY installation — no specialized tools needed
• Foundation protection — directs water away from the base to prevent erosion and pooling

In stock — ships in 1–2 business days.