The RYOBI Electrostatic 1 Gal. Sprayer Holster makes spraying chemicals easier than ever. This holster fits the RYOBI 18V ONE+ 1 Gal. Electrostatic Sprayer (P2870) and RYOBI 1 Gal. Replacement Tank for Electrostatic Sprayers (ACES09). The comfortable backpack design and adjustable shoulder straps allow you to work much longer with less fatigue. Made with the user in mind, this allows for 1-handed operation for right-handed or left-handed use. Clip the 1 Gal. tank into the RYOBI Electrostatic 1 Gal. Sprayer Holster and with the push of a button you are ready to go.