The Jiffy 42mm Peat Pellet Refill pack comes with twenty-five (25) Jiffy expanding peat pellets.
These peat pellets fit 10 cell Jiffy Windowsill Greenhouses, and 25 and 50 cell Jiffy Greenhouses.
 
The peat pellets will expand with warm water to create the perfect home for seedling growth. Refill your seed starting tray and keep your seed starting season going!