Pet equipment that is good working condition and pet food that is fresh and not expired can sometimes be donated. An internet search such as “donate (pet carrier, pet food etc.) York PA” will show businesses that accept these items for donation.
Metal pet cages and carriers may be able to be recycled by metal salvage businesses. An internet search such as “recycle metal pet cage York PA” will show businesses that accept these items for recycling.
Pet items can be disposed in the regular trash.