For deep well systems, maintaining the correct balance between air and water in storage tanks is essential for reliable pumping and steady pressure. The following article highlights top-rated air volume controls designed for deep wells, focusing on durability, ease of installation, and corrosion resistance. The selections below are current popular choices among homeowners and pros, offering precision in air bleed and pressure management to help your well system run smoothly.
| Product | Brand | Key Benefit |
|---|---|---|
| Merrill MFG Air Volume Control for Deep Wells | Merrill | Balanced air/water volume in galvanized tanks |
| Replacement for F93B-1C Air Volume Controls (MNPT 1-1/4 | yourour | Premium brass components, easy install |
| Merrill MFG AE10 Deep Well Air Volume Control | Merrill | Durable plastic housing, compatible with submersible pumps |
| Johnson Controls F93B-1C Air Volume Control | Johnson Controls | Resistant body, reliable performance |
| BOSHART AVC-DWP Deep Well Air Volume Control | BOSHART | Durable plastic body, gauge port |
Choosing the right air volume control requires comparing build materials, connection sizes, gauge ports for testing, and how the unit handles pressure changes as the tank refills. The products listed here cover brass and plastic housings, 1-1/4 inch pipe threads, and handy gauge taps to test pressure. Consider your tank diameter, depth of the well, and whether you prefer a lightweight, easy-to-install option or a robust, corrosion-resistant model for long-term use.
Merrill MFG Air Volume Control for Deep Wells

The Merrill MFG air volume control is designed to maintain the balance of air within galvanized water tanks used with deep well pumps. Its body is threaded to 1-1/4″ pipe, and a 1/4″ tap is available for a pressure gauge, enabling straightforward pressure monitoring. Brass internal components help minimize corrosion, contributing to a longer service life in water-rich environments. Suitable for standard residential deep well setups, this unit emphasizes stable air management and reliable operation in pumping cycles.
Replacement for F93B-1C Air Volume Controls (MNPT 1-1/4)

This replacement unit targets deep wells averaging above 25 feet in depth. It features a 1/4″ gauge tap for pressure testing and a 1-1/4″ main body thread for straightforward installation. Made with brass internal components to resist corrosion and a durable plastic housing for stable float operation, it promises a long operating life. The design focuses on easy installation with standard tools and compatibility with common deep well tanks that require precise air volume control.
Merrill MFG AE10 Deep Well Air Volume Control

The Merrill AE10 model emphasizes a durable plastic housing suitable for use with submersible well pumps. It provides reliable air volume control within residential storage tanks, balancing efficiency and ease of installation. Though more compact than metal-bodied options, its design remains robust for long-term water pressure management, ensuring consistent performance in a variety of well depths and tank sizes.
Replacement for F93B-1C Deep Well Air Volume Control (JohnTruck)

This unit is designed to prevent tanks from becoming air bound by maintaining proper air volume automatically. It opens the bleed valve when air increases and allows air to bleed as the tank refills, with a safety feature to limit air release and prevent pressure drops below a minimum threshold. Brass internal parts reduce corrosion risk, and the thermoplastic body provides resistance to wear and UV exposure. It targets residential deep well applications with a 1-1/4″ body and a 1/4″ gauge tap for monitoring pressure.
BOSHART AVC-DWP Deep Well Air Volume Control

The BOSHART AVC-DWP model features a durable plastic body with a 1.25″ MPT tank connection and a 1/4″ FPT pressure gauge port. Designed for deep well applications, it facilitates reliable air management while resisting mechanical wear and corrosion. The gauge port allows straightforward testing of tank pressure, helping maintain optimal water delivery and pump performance over time. A practical option for homeowners seeking a sturdy, easy-to-install control with gauge access.
BOSHART (BII) Deep Well Air Volume Control With Gauge Kit

This BOSHART kit includes a deep well air volume valve, a 1/4″ MPT pressure gauge, and a TEFLON tape roll. The gauge reads 0-100 PSI, helping monitor the system easily. The valve maintains proper air volume to prevent air binding, supporting efficient tank operation in residential deep well systems. The inclusion of a gauge and tape kit makes installation and ongoing maintenance straightforward for homeowners and installers alike.
Buying Guide: Key Purchase Considerations
- Connection size and compatibility: Most units use 1-1/4″ pipe threads; confirm your tank opening and piping to ensure proper fit.
- Materials and corrosion resistance: Brass internal components excel in corrosion resistance, while durable plastics reduce weight and simplify installation.
- Gauge port availability: A 1/4″ gauge tap enables easy pressure testing and monitoring, a critical feature for maintaining safe operation.
- Float mechanism and bleed behavior: Look for stable float operation and an appropriate bleed action that maintains balanced air and water without excessive release.
- Tank diameter and depth of well: Deeper wells or larger tanks may require higher-capacity or more robust controls to prevent air binding.
- Ease of installation: Some models emphasize simple bolt-on installation with minimal tools; others may require thread sealing tape and careful alignment.
- Durability under field conditions: Units exposed to groundwater and varying temperatures benefit from reinforced housings and corrosion-resistant components.
When evaluating options, compare maintenance requirements, compatibility with submersible pumps, and the availability of replacement parts. Consider also whether your installation benefits from built-in gauge ports, pre-included sealing materials, or gauge kits that simplify setup and future checks. By matching a model to your well depth, tank size, and climate conditions, you can optimize pump efficiency and extend the life of your storage system.