Meth pipes are often sold with an attachment that allows them to be used as, or passed off as, cannabis pipes.

Northland drug and addiction services frustrated by the easy availability of meth pipes are calling on retailers to pull drug utensils from their shelves - and for police and health authorities to enforce the law.

RNZ's visits to vape stores, $2 shops and dairies in Northland suggest it's likely hundreds, possibly thousands, of shops around the country sell glass pipes for smoking the country's most pernicious and addictive drug.

That finding comes just days after dozens of alleged meth cooks and dealers were arrested in major police busts across Northland and Auckland.

Rhonda Zielinski, kaiwhakahaere (chief executive) of Whakaoranga Whānau Recovery Hub in Kaikohe, described the situation as "absolutely ludicrous".