A mounting assembly for a fluid handling device comprising: a base, configured to be secured to a surface; a waterway body (3a, 3b) comprising a first end (7, 7') and a second end (8, 8'), comprising: an inlet portion (4a, 4b) disposed at the first end (7, 7'), the inlet portion (4a, 4b) including a plurality of inlet tubes (41a, 41a', 41b, 41b'), each inlet tube being securable, at a respective inlet connection point (42a, 42a', 42b, 42b'), to a water supply pipe extending from the surface; and an outlet tube (5a, 5b) disposed at the second end (8, 8'), the outlet tube (5a, 5b) being configured to be connected to the fluid handling device, wherein the waterway body (3a, 3b) provides fluid communication from the inlet tubes (41a, 41a', 41b, 41b') to the outlet tube (5a, 5b); wherein the waterway body (3a, 3b) is connected to the base at the second end (8, 8'); wherein the waterway body (3a, 3b) or a part thereof is rotatable with respect to the base about a first rotation axis (71a, 71b) extending in a perpendicular direction from the base; wherein the waterway body (3a, 3b) is configured such that a first distance from the inlet tubes (41a, 41a', 41b, 41b') to the outlet tube (5a, 5b) may be adjusted; and wherein the inlet portion (4a, 4b) is rotatable with respect to the outlet tube (5a, 5b) about a second rotation axis (72a, 72b) and at least two of the inlet tubes (41a, 41a', 41b, 41b') are of different lengths such that rotation of the inlet portion (4a, 4b) about the second rotation axis (72a, 72b) may allow an installer to select between at least two inlet tubes (41a, 41a', 41b, 41b') having different lengths, whereby a second distance between the inlet connection points (42a, 42a', 42b, 42b') and the surface may be selected. a base, configured to be secured to a surface; a waterway body (3a, 3b) comprising a first end (7, 7') and a second end (8, 8'), comprising: an inlet portion (4a, 4b) disposed at the first end (7, 7'), the inlet portion (4a, 4b) including a plurality of inlet tubes (41a, 41a', 41b, 41b'), each inlet tube being securable, at a respective inlet connection point (42a, 42a', 42b, 42b'), to a water supply pipe extending from the surface; and an outlet tube (5a, 5b) disposed at the second end (8, 8'), the outlet tube (5a, 5b) being configured to be connected to the fluid handling device, wherein the waterway body (3a, 3b) provides fluid communication from the inlet tubes (41a, 41a', 41b, 41b') to the outlet tube (5a, 5b); an inlet portion (4a, 4b) disposed at the first end (7, 7'), the inlet portion (4a, 4b) including a plurality of inlet tubes (41a, 41a', 41b, 41b'), each inlet tube being securable, at a respective inlet connection point (42a, 42a', 42b, 42b'), to a water supply pipe extending from the surface; and an outlet tube (5a, 5b) disposed at the second end (8, 8'), the outlet tube (5a, 5b) being configured to be connected to the fluid handling device, wherein the waterway body (3a, 3b) provides fluid communication from the inlet tubes (41a, 41a', 41b, 41b') to the outlet tube (5a, 5b); wherein the waterway body (3a, 3b) or a part thereof is rotatable with respect to the base about a first rotation axis (71a, 71b) extending in a perpendicular direction from the base; wherein the waterway body (3a, 3b) is configured such that a first distance from the inlet tubes (41a, 41a', 41b, 41b') to the outlet tube (5a, 5b) may be adjusted; and wherein the inlet portion (4a, 4b) is rotatable with respect to the outlet tube (5a, 5b) about a second rotation axis (72a, 72b) and at least two of the inlet tubes (41a, 41a', 41b, 41b') are of different lengths such that rotation of the inlet portion (4a, 4b) about the second rotation axis (72a, 72b) may allow an installer to select between at least two inlet tubes (41a, 41a', 41b, 41b') having different lengths, whereby a second distance between the inlet connection points (42a, 42a', 42b, 42b') and the surface may be selected.