Don't visit the compost heap more often than you need to. Use this generous 30 litre capacity to hold your kitchen fruit and vegetable peelings. Available individually - Caddy, Filters and Liner Bags. COMPOST CADDY - Use this generous 30 litre capacity to hold your kitchen fruit and vegetable peelings. The activated carbon filter, housed in the lid, contains any unpleasant odours for 3-4 months. The lining bags make the task even easier because as well as keeping the inside of the caddy clean, they are biodegradable so you just lift out the bag when full and put the whole thing straight onto the compost heap. The caddy is made from recycled plastic, and the bags are based on vegetable starch that will compost within 60 days. 30 litre Caddy complete with one filter. Caddy dimensions: Base 37 x 28cm, Height 36cm. FILTERS - The activated carbon filter, housed in the lid, contains any unpleasant odours for 3-4 months. LINER BAGS - Jumbo Odour Free Compost Caddy Liner Bags. Roll of 10 bags for the 30 litre Compost Caddy.