Ilford Ilfotec LC-29 Film Developer (500ml Concentrate)
Here is what Ilford have to say:
ILFORD ILFOTEC LC29 is a highly concentrated liquid black and white film developer that is flexible and economic to use. It is based on the technology used in ILFORD ILFOTEC HC developer but is formulated to be an easy to pour liquid for small volume film processing. ILFOTEC LC29 is designed to complement the features of all ILFORD films giving fine grain negatives with good sharpness characteristics and image quality.