The OTS Equalizing Kit Nose Block – 910385-000 is the correct replacement nose block for equalizing on compatible OTS full face masks. If the original nose block has gone missing, become damaged, or worn out, this is the part needed to restore proper equalizing function.

These parts do occasionally go missing, especially during field use, transport, or service, so replacing them with the correct OTS component is important. With different options and sizes available, this kit helps maintain proper fit, function, and dependable performance where it counts.

For public safety teams, professional divers, and serious full face mask users, small parts matter. A missing nose block can turn into a real problem fast. Keep your OTS mask complete and operational with the right replacement part.

Guardian/Stealth FFM Equalizing Kit (Includes 1 Standard Base, 1 Adjustable Base, 4 Insert Sizing Pads)