En Stock New Available Spare parts and kits Apeks Spring Adjuster Apeks-Spring-adjuster 9.68 € Adjustment screw of the Intermediate Pressure Control Spring of the Apeks 1st stages. Choose the right one for your specific 1st stage model Item No. 1: Fits with XL4, DB4, MTX, FSR (XTX200), FST (XTX100), Tek3, DST (XTX50), DS4 Item No. 2: US4, US1 Item No. 3: Flight NOTE: The photo may not exactly match the specific model Add to cart