Robinair Promax Filter Conversion Kit FLCK-1 for older units — 4in hose, male/male inline filter

The Robinair FLCK-1 Filter Conversion Kit replaces the obsolete MF1275 swivel fitting so Promax recovery and recycling units can accept a standard male/male inline filter.

Need to update an older Promax A/C recovery or recycling unit so it uses today's standard filters? The FLCK-1 conversion kit contains the hose, adapter, and male/male inline filter required to replace the discontinued swivel fitting used on earlier Robinair Promax models. It's built for professional service environments and designed to provide a secure connection and easy, tool-free handling.

How does the FLCK-1 make maintenance easier on older Promax units?

The kit swaps out the obsolete MF1275 swivel fitting and converts the connection to accept a common male/male inline filter, simplifying parts sourcing and routine filter changes. Technicians can fit standard replacement filters without custom adapters, reducing downtime and inventory complexity.

• Includes a dedicated adapter for Promax swivel-to-male/male conversion
• Male/male inline filter compatible with widely available filters
• Straightforward installation with no special tools required

What construction features ensure a reliable connection under pressure?

Robinair engineered the hose and fittings for durability and leak-resistant performance. The hose ends use a six-sided crimp to form a robust mechanical bond to the barb, and knurled coupler nuts allow secure finger-tight connections that resist loosening during service.

• Six-sided crimp on hose ends for a strong mechanical seal
• Deep knurling on coupler nuts for positive finger-tight grip
• Materials specified for HVAC-R operating conditions and pressures

What components come in the FLCK-1 kit and how long is the hose?

The FLCK-1 ships with three parts needed to complete the conversion: a 4-inch hose, a male/male inline filter, and the adapter that replaces the old swivel fitting. The short hose length keeps the inline filter close to the unit for neat routing and minimizes added volume in the recovery circuit.

• One 4-inch hose sized for a compact installation
• One male/male inline filter ready for service use
• One adapter to replace the MF1275 swivel fitting

Will this kit fit my Promax model and where is Robinair made?

If your Promax recovery or recycling unit uses the obsolete MF1275 swivel fitting, the FLCK-1 is the direct conversion solution to enable standard male/male filters. Robinair is a Bosch Automotive Service Solutions brand based in Owatonna, Minnesota, and has a long track record in AC/R service tools.

• Designed specifically for earlier Promax units using p/n MF1275
• Compatible with standard male/male inline filter sizes used in HVAC-R
• Manufactured and supported by Robinair, a global AC/R tooling leader

Who is this for? The FLCK-1 Filter Conversion Kit is intended for professional technicians, service shops, and fleet maintenance teams who operate older Robinair Promax recovery and recycling machines and want a simple, durable way to adopt standard male/male filters. It’s ideal when you need a compact hose assembly, a secure mechanical connection under working pressure, and a reliable adapter to replace an obsolete swivel fitting without reworking the machine.