HT173SD RV Waste Holding Tank – 23 Gallon, Side Drain, with 3" Spigot & Sensors
Upgrade your RV’s waste system with the HT173SD RV Waste Holding Tank, designed for reliable performance and long service life. This 23-gallon tank features a 3" spigot side drain and comes with four pre-installed level sensors, giving you accurate waste level readings at a glance.
Constructed from durable ABS plastic, this tank resists damage from harsh road conditions and chemical exposure. All seams are solvent-welded to ensure a leak-proof seal, and a 1¼" mounting flange provides secure installation. Ideal for custom van builds and RV retrofits.
Key Features:
- Capacity: 23 US gallons
- Dimensions: 48" L x 24" W x 7½" H
- Drain Location: Side
- Fittings: Includes 3" spigot
- Sensors: 4 level sensors pre-installed
- Material: High-strength ABS plastic
- Color: Black
- Mounting Flange: 1¼", integrated on all sides
Built to meet the demands of RV life, the HT173SD offers peace of mind, durability, and easy integration into your vehicle’s waste system.
Width: 62.79" (1595mm)
Crossbar Length: 62.40" (1585mm)
130 HR Transit: 104.72" (266.0cm)
148 MR Transit: 132.3" (336.0cm)
148 HR Transit: 81.9" (308.0cm)
148 HR EXT Transit: 150.4" (382.0cm)
Lengths by Vehicle:
Internal Width: 62.22" (1555mm)
130 Transit: 49 lbs
148 Transit: 58 lbs
148 EXT Transit: 74 lbs

