Head Piston BP20-15, Mp20+30 S.399821 The Silvan / Comet APS121

The Silvan / Comet APS121 is a heavy-duty

Variable direction control

Return Port: 3/4"

Fitting a genuine Silvan replacement ensures your 042D-57 performs exactly as designed

Head Piston BP20-15, Mp20+30 S.399821 The Silvan / Comet APS121Genuine Silvan Piston Head for BP and MP Series Pumps Restore peak performance to your Silvan diaphragm pump with this precision engineered piston head. Designed as a direct replacement for BP20 15 and Mp20+30 pump models, this critical component ensures reliable pressure delivery and extends the service life of your pump. Compatible Pump Models: BP20 15 Diaphragm Pump Mp20 Series Pumps Mp30 Series Pumps Key Features: Genuine Silvan OEM part