264 Gallon Underground Septic Tank Kit, Plastic Septic Tank System for 3–5 People, Mini Septic System for Cabin, Tiny Home & Off-Grid Living, Includes 6 Risers & 6 Covers, 69.9×40.1×36.6 in

Features

• SMALL SEPTIC TANK SYSTEM FOR CABINS, TINY HOMES & OFF-GRID LIVING. Built for small households and remote setups, this Tankify 264 gallon septic tank kit supports 35 users. Made from heavy-duty polypropylene (PP), this rectangular plastic septic tank resists corrosion, soil pressure, and temperature changes, delivering a long-lasting compact wastewater solution. This compact polypropylene septic tank can serve as a practical sewage tank, sewer tank, or wastewater tank solution for cabins, tiny homes, ADUs, workshops and off-grid properties where larger traditional septic systems may be impractical or unnecessary.
• 6 SEPTIC TANK RISERS & COVERS BUILT FOR REAL-WORLD INSTALLATIONS. Includes 6 risers and 6 covers (most kits include only 3). While 3 are used for standard installation, the additional set provides built-in backup for unexpected situations, adjustments, or future needs. Designed for real-world conditions where plans change, giving you flexibility, long-term reliability, and peace of mind. Helps provide additional flexibility for real-world installations, future adjustments, and unexpected project changes.
• UNDERGROUND SEPTIC TANK FOR RELIABLE USE. Designed for underground septic system installations, this plastic septic tank is built to handle soil contact, moisture, and environmental exposure while maintaining consistent, low-maintenance performance. Ideal for homeowners looking for easier long-term septic system maintenance with simplified access for inspections and servicing. This poly septic tank provides a durable wastewater holding tank and waste holding tank solution for residential wastewater management.
• EASY MAINTENANCE RISER SYSTEM NO EXCAVATION NEEDED. Above-ground risers provide quick access for inspection and servicing without digging, reducing labor costs and simplifying long-term maintenance. Especially useful for space-limited properties where reducing excavation work can help simplify maintenance over time. As part of a properly designed wastewater treatment system, the tank can support wastewater management and may be used in applications requiring a settling tank, depending on local regulations and system design.
• COMPLETE SEPTIC TANK INSTALLATION KIT. Includes essential tools and safety gear: gloves, face mask, hammer, wrenches, and tape measure. Ideal for DIY septic system setups or professional installation. Suitable for cabin builders, rural property owners, off-grid living setups, and first-time septic system projects. The compact design provides a versatile wastewater and sewage management solution for properties that may require septic tanks, a sewage holding tank, or waste holding tank.
• IMPORTANT INSTALLATION REQUIREMENTS. Check local regulations before purchase. Professional installation required. Exhaust pipes and caps sold separately. Product must remain unused and uninstalled for returns. Always verify whether local regulations permit the use of septic tanks, wastewater holding tank, sewage holding tank, or other wastewater management configuration for your specific property and application.

Product Dimensions ‏ : ‎ 69.88 x 40.16 x 36.61 inches; 117.07 pounds

Item model number ‏ : ‎ 264 GAL TANK

Date First Available ‏ : ‎ April 27, 2026

Manufacturer ‏ : ‎ TANKIFY

Best Sellers Rank: #182,297 in Health & Household (See Top 100 in Health & Household) #88 in Septic Tank Treatments

#88 in Septic Tank Treatments:

Customer Reviews: 5.0 5.0 out of 5 stars (3)