Tube 350x400x7 (3.50x4.00x7) Straight Stem – Heavy-Duty Inner Tube for Utility, Cart & Equipment Tires

The Tube 350x400x7 (3.50x4.00x7) Straight Stem is a high-quality, heavy-duty replacement inner tube designed for 7-inch wheels on carts, hand trucks, and small utility equipment. Made from durable butyl rubber, this tube provides superior air retention, puncture resistance, and flexibility. Its straight stem design allows for easy inflation and compatibility with standard valve fittings.

Features & Specifications:

• Size: 350x400x7 (3.50x4.00x7)

• Valve Type: Straight Stem (standard Schrader valve)

• Material: Heavy-duty butyl rubber for strength and reliability

• Construction: Puncture-resistant design with reinforced sidewalls

• Compatibility: Fits 7-inch wheels used on hand trucks, pressure washer carts, and small utility or industrial equipment

Benefits:

• Exceptional air retention and resistance to leaks

• Reinforced design prevents cracking and dry rot

• Provides smooth, stable performance under heavy loads

• Easy to install and service

Applications:
Ideal for hand trucks, small trailers, carts, and lawn or softwash equipment using 3.50x4.00x7 tires.