Roscoe Moss Company is the only company in the world that produces casings designed specifically for water wells.

Our casings are fabricated in sizes to most efficiently accommodate pump assemblies and are manufactured from steel alloys proved best suited for ground water development. A summary of steel types and applications are shown below:

Steel Type	Application
Stainless: Types 304 and 316L	For water wells where corrosive elements limit the effective life of carbon, copper-bearing, and HSLA steels. Stainless steel is particularly resistant to the detrimental effects of hydrogen sulfide, carbon dioxide, and saline water. Removal of incrustation by acidizing, a method not recommended for some other steels, may be accomplished in stainless steel screens.
HSLA	Corrosion resistant, HSLA (High-Strength Low-Alloy) steel casings and screens are designed and produced for use in water wells where corrosion resistance, strength, and durability are important requirements. Stronger than carbon or copper-bearing steel, HSLA casing and screen are excellent choices for deep, large diameter wells. Although more corrosion resistant than carbon or copper-bearing steel, in wells where severe corrosive elements are present, an analysis must be made before selecting this material over stainless steel.
Copper-Bearing	For use in water wells where resistance to corrosion is an important requirement. Although not as corrosion resistant as HSLA or stainless steel, copper-bearing casings and screens have proven to last longer than other carbon steel products.
Low Carbon	When economy as well as strength and efficiency are important requirements.

All MossWell casings are fabricated by the spiral process utilizing double, submerged-arc welding. This method offers special advantages including; accurate geometrical tolerances, increased strength (due to wall thickness reinforcement of the fusion weld), and assurance of full weld penetration of the seam.

Casing ends are generally prepared for field assembly with factory-attached weld collars. This provides greater joint strength and economy than possible with other types of joints. Additionally, ease and speed of installation are greater compared with plain end welded connections.