Hundreds of wellhead cap and flange combinations are available from QED on a standard and custom basis to fit site needs and ease installation and service. Common features include quick-connect fittings, sealing versions for use with vacuum extraction, well access ports for level or other uses, and means for adjusting the pump level. Our cap assemblies are based on our 20 years of experience and thousands of installations, call QED for more detailed information and guidance on the best cap choice for your project.