Milton® #520 Straight head chuck bayonet gauge has lever action and is made with heavy-duty construction, providing long service life even with constant use. Valve and gauge cartridges are replaceable and combined in one easy unit. Includes a 12" hose with a pressure range that offers 10-120 PSI (2-lb. increments) or 80-840 kPa (20 kPa increments). The air chuck has 1/4” Barb threads. Complete with a jumbo white nylon indicator bar for easy reading.

With ¼” NPT threads, all Milton® hose whips are compatible for use and have interchangeable connections with any of the 4 Milton® Bayonet Inflator Gauge bodies: #520 (straight chuck head), #521 (single chuck head), #522 (dual truck head chuck), and #523 (grip chuck head to lock onto valve).

Recommended Replacement Parts:

S-520’s replacement air hose whip: Milton® #528 (12-inch hose whip w/straight chuck head).

S-520’s replacement air chuck:Milton® #P500-45.

Replacement cartridge for #520-523: Milton® #525.