Can anyone ID these?

[AussieHomer]

I've got a leak in the cooling system of my VR and, AFTER I'd replaced the radiator and hoses, traced it to a leak in the parts illustrated below (d'oh!). Being an LPG-converted model I'm assuming that these parts in the attached photos are non-standard, but I've no idea what they are — so I've no idea what to ask for in the way of replacements. Can anyone help?

[hakhawk]

first one is heater tap, standard item

second one is just a t piece by the looks, not standard, as you said, used for the gas.