20/40/115 Port Hole Cover 20/40/115 Port Hole Cover (eco-5222)Port Hole CoverPort Hole Cover - The Multi-Res Reservoir comes with a specially
designed lid containing an access port. This standard option allows
the gardener easy access to the reservoir without taking the entire lid
off, ensuring a more functional routine of adding solutions, nutrients
and water to your reservoir. The Port Hole cover keeps de... — Ships from Seattle, Washington USA....more info.