The GROSITE G-Spot 4 bucket add-on allows for fast, simple leak free installation of four additional buckets or sites. Includes one additional 1 inch threaded plug for mid-row installation without disrupting water cycle.

The GROSITE G-Spot Corner bucket add-on allows for fast, simple leak free installation of one additional bucket or site. Lifetime GroSite Guarantee.

The GROSITE G-Spot Bucket Buddy Cover. Washable cloth cover available in your choice of either solid black or chili pepper pattern fabric. A removable cloth cover that provides a complete light block. Fully washable.

The GROSITE G-Spot TEE expansion fitting allows for fast, simple leak free installation of additional horizontal rows to your G-Spot GroSystem. Includes additional bucket plug.

The GROSITE G-Spot Spacer expansion fitting allows for fast, simple leak free installation of additional spacers between buckets. Connect two in order to create a blank that can replace a complete bucket mid row.

The GROSITE G-Spot ELBOW expansion fitting allows for fast, simple leak free installation of additional sites to your G-Spot GroSystem.

The GROSITE G-Spot Upgrade includes a 57 gallon reservoir, a new 5 gallon brain bucket flip top lid, and two Mag 5 water pumps.

Allows for expansion of up to 40 sites. Includes all necessary components to upgrade a Grosite BigMama system to a Grosite GSpot system with a capacity of up to 40 sites.

No need to stop existing system to upgrade - simply add the upgrade then add more sites (not included) - up to 40.

The GROSITE Contender Upgrade includes a 200 gallon reservoir, a new 5 gallon brain bucket flip top lid, and two Mag 18 water pumps.

Allows for expansion of up to 120 sites. Includes all necessary components to upgrade either a Grosite BigMama and GSpot system to a Grosite Contender system with a capacity of up to 120 sites.

No need to stop existing system to upgrade - simply add the upgrade then add more sites (not included) - up to 120.