Asoplador (m)
(with) definite article: eltube through which the bag of a mouth-blown bagpipe, &c. is inflated
From "soplar" [to blow/inflate]; NB¹: ➺ similar terms & Assoprete; NB²: According to Jambrina Leal, "the blowpipe and drone of the Gaita de fole are arranged in a reversed order with regard to that of a Gaita galega", the drone of which is fitted in the nearest leg, thus allowing its required position (which Jambrina Leal describes as "vertical", which in my perception is incorrect, however [Compare inclined with retrograde]).
Jambrina Leal, Alberto: Panorama de la gaita de fole en Zamora, Castilla y Leon [sic]. In: Utriculus IX (34), aprile/giugno 2005, p.10.