ICON HT700-SD 31 Gallon RV Holding Tank – Black & Gray Water Waste Tank with Level Sensors - 01594

Heavy-Duty Replacement RV Holding Tank for Black or Gray Water Systems

The ICON HT700-SD 31 Gallon Holding Tank is a durable, low-profile RV waste holding tank designed for use as either a black water holding tank or gray water holding tank. Built from rugged ABS plastic and engineered for long-lasting performance, this tank is an ideal replacement for cracked, leaking, or damaged RV holding tanks.

Featuring a generous 31-gallon capacity, factory-installed 4-level tank sensors, and a pre-installed 3-inch spigot outlet fitting, the HT700-SD is a reliable solution for travel trailers, fifth wheels, motorhomes, toy haulers, and camper conversions.

Whether you're repairing your RV's waste system or building a custom plumbing setup, the ICON HT700-SD delivers dependable waste storage and easy integration into existing RV sanitation systems.

Features & Benefits

• Designed for use as either a black water or gray water holding tank
• Large 31-gallon waste storage capacity
• Durable ABS plastic construction resists cracking and corrosion
• Factory-installed 4-level sensors for convenient tank monitoring
• Pre-installed 3-inch spigot outlet fitting
• Includes 1-1/4 inch solvent-welded mounting flange
• Seamless roto-molded construction helps prevent leaks
• Low-profile design fits many RV and trailer applications
• Excellent replacement for damaged or aging holding tanks
• Compatible with gravity-flush and macerating toilet systems when properly configured

Specifications

• Manufacturer: ICON Technologies
• Part Number: HT700-SD
• Product Type: Waste Holding Tank
• Application: Black Water or Gray Water
• Capacity: 31 Gallons
• Length: 54-1/2 Inches
• Width: 26-1/2 Inches
• Height: 9 Inches
• Outlet Fitting: 3 Inch Diameter Spigot
• Mounting Flange: 1-1/4 Inch Solvent-Welded Flange
• Material: ABS Plastic
• Tank Sensors: Four (4) Level Sensors Pre-Installed
• Color: Black
• Quantity: Single

Common Applications

The ICON HT700-SD is commonly used as a replacement or upgrade for:

• RV black water holding tanks
• RV gray water holding tanks
• Travel trailer waste tanks
• Fifth wheel holding tanks
• Motorhome waste tanks
• Toy hauler waste tanks
• Camper plumbing systems
• Custom RV sanitation installations

Compatible Toilet Systems

When properly plumbed, the HT700-SD can be used with:

• Dometic RV toilets
• Thetford RV toilets
• Dometic MasterFlush macerating toilets
• Tecma macerating toilet systems
• RV gravity-flush toilet systems
• Custom RV waste management systems

Why Choose the ICON HT700-SD?

When searching for a 31 gallon RV holding tank, RV black tank replacement, RV gray water tank, or RV waste holding tank with sensors, durability and fitment are critical.

The HT700-SD combines a large-capacity design with heavy-duty ABS construction and factory-installed sensors, making it an excellent choice for RV owners looking for a dependable replacement holding tank that delivers years of reliable service.

Its low-profile design allows installation in many RV underbelly configurations while maximizing waste storage capacity.

Frequently Asked Questions

Can this tank be used for black water?

Yes. The HT700-SD is designed for use as either a black water holding tank or gray water holding tank.

Are tank sensors included?

Yes. Four level sensors are factory-installed and ready to connect to your RV tank monitoring system.

Does the tank include a drain outlet?

Yes. A 3-inch spigot outlet fitting is pre-installed.

Can this tank be used with a Dometic MasterFlush or Tecma toilet?

Yes. The HT700-SD can be used with macerating toilet systems when fitted with the appropriate inlet connection and venting system.

Is the tank made from ABS plastic?

Yes. The tank is manufactured from durable ABS plastic specifically designed for RV waste system applications.