Accessories
Caps, test plugs, and inlet filters for every installation
Pop indicator caps, test plugs for system pressure testing, and inlet filters to protect relief valve internals from system contamination. All designed for direct compatibility with Cyrus Shank valve series.
Pop indicator capsTest plugsInlet filtersMade in USA
Compare the Family
Accessories at a glance
| Specification | Pop Indicator CapView specs | Manifold CapView specs | Test PlugsView specs | Filters (Relief Valves)View specs |
|---|---|---|---|---|
| Material | Brass | Brass | Brass | — |
| Used With | — | — | — | Cyrus Shank relief valves |
Why Cyrus Shank
Every accessorie is built the same way
ASME Certified Quality
Manufactured and documented to the standards your inspectors and codes require.
Custom Set Pressures
Factory-set to your exact spec at no additional charge on any model in the family.
100% Bench Tested
Every unit is individually tested and verified before it leaves our factory.
American-Made Since 1912
Precision-machined in Williamsport, PA by a family-owned manufacturer.
Where It's Used
Accessories for demanding refrigeration systems
Frequently Asked Questions